Your friend hides a dollar bill under one of three plastic cups. Under the other two cups is a paper clip. You get to keep whatever is under the cup you choose, but you don't know which contains the dollar bill. After you choose, your friend lifts one of the other cups to reveal a paper clip and then gives you the option of changing your choice. Should you switch to the other cup?

Mark draws one card from a standard deck of 52. He receives $ 0.40 for a diamond, $ 0.70 for a queen and $ 0.90 for the queen of diamonds. How much should he pay for one draw?

3 Gina ordered 2 sheets of wallet-sized photos and 4 sheets of portrait-sized photos for $30. Rosanne ordered 3 sheets of wallet-sized photos and 3 sheets of portrait-sized photos for $27. Kristina ordered 1 sheet of wallet-sized photos and 5 sheets of portrait-sized photos. Each sheet of wallet-sized photos cost the same. Each sheet of portrait-sized photos cost the same. How much did Kristina pay for her photos? Answer $

Your boutique buys a hoodie for $15 and sells it for $31.  What is the markup?

Batman, Robin, and Alfred all have $100,000 in a chest. Batman's pile increases by $2,550. Robins stack decreases by $5,000. and Alfred's money increases by $4,550. Who's chest of money changed the most?

Gloria Sol had a basket of eggs.  She gave half of them to her mother.  Then her friend took two more to make some cookies.  After that she gave 1/3 of what was left to her neighbor and then she made an omelet with four more of the eggs.  If she was then left with a half dozen eggs, how many eggs did she start with?

Delaney and Ellie set up a table one summer day to sell chocolate chip cookies and sugar cookies.They sell each chocolate chip cookie for 50 cents and each sugar cookie for 40 cents. At the end of theday, they have sold 82 cookies and earned $38.20. How many chocolate chip cookies did they sell?

← The Family Arts Center charges $23 for adults, $16 for senior citizens, and $5 for children under 12 for their live performances on Sunday afternoon. This past Sunday, the paid revenue was $9,951 for 711 tickets sold. There were 47 more children than adults. How many children attended? OA. 274 children OB. 210 children OC. 227 children OD. 264 children GEXED

A display case of CDs are marked 9 for $20. If Evan wants to buy 180 CDs, how much will Evan spend?

A vendor had a basket of water melons. Her first costumer said, " sell me half of your water melons plus 1/2 of one water melon." The vendor did so. A second costumer said, “ sell me half of your water melons plus 1/2 of one water melon." The vendor did do too. A third costumer came and said the same thing as the other two said and when the vendor sold him what he wanted, all her water melons were sold. How many water melons were originally in the basket? Select one: O a. 20 O b. 32 С. 7 O d. 15