Richard has been given a 12-question multiple-choice quiz in his history class. Each question has five answers, of which only one is correct. Since Richard has not attended the class recently, he doesn't know any of the answers. What is the value of n ?(n is the number of trials)

On Saturday, you bowl at Cherry Hill Lanes, where renting shoes costs $2 and each game bowled is $3.50. On Sunday, you bowl at  Thunderbowl where the shoe rental is $5 and each game bowled is $3.25. If you spent the same amount each day, how many games, g, were bowled?

During second period, Mia completed a grammar worksheet. Of the 60 questions, Mia got 80% right. How many questions did Mia get right? Answer: questions.

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Customers at an ice-cream shop took a survey. The results showed that 144 customers ratedthe shop as being “very satisfactory.” This number represented 45% of the total number ofcustomers who took the survey.What was the total number of customers who took the survey?   A. 189 B. 65 C. 99 D. 320

Ben has some apples. 9 are red apples. 7 are yellow apples. He gives all the yellow apples to Andy. He eats 1 red apple. How many apples does he have left?

To earn an A in a course, a boy must have a final average of at least 84%. On the first four examinations, he has grades of 81%, 87%, 77%, and 77%. If the final examination counts as two grades, what must he get on the final to earn an A in the course? Select the correct choice below and fill in the answer box to complete your choice. O A. To earn an A in the course, the boy must have at least % on the remaining final examination. O B. To earn an A in the course, the boy must have at most % on the remaining final examination. O C. To earn an A in the course, the boy must have less than % on the remaining final examination. D. To earn an A in the course, the boy must have greater than % on the remaining final examination.

A teacher has 5 students. She wants to pick two students to send the first one home and ask the second one to clean the blackboard. How many options she has. 20 Onone of these answers O 10 60

Melinda owed her mother $8.10 that she borrowed to go see a movie. She eamed $6.50 babysitting her neighbors' toddler. Which calculation best represents Melinda's situation? O -8.10 - 6.50 O 8.10 + 6.50 O -8.10 + 6.50 O 8.10 6.50 O A OD F6 F7 F8 Fg F10 F11

You are given the chance to play one of two games: One where there is a 20% chance of you winning 8 dollars and an 80% chance of winning 128 dollars. For the second game you have a 20% chance of winning two dollars and an 80% chance of winning 256 dollars. Which lottery is worth more on average, and how much is it worth   discrete math