At a mail-order company, Derrick can process 100 orders in 4 hr. Miguel can process 100 orders in 3 hr.a. How long would it take them to process 100 orders if they work together?b. How long would it take them to process 1400 orders if they work together?

Jenny is now 18 and Carmen is 12. How many years ago was Jenny twice as old as Carmen?

at the beginning of an observationally study a culture contains 6000 bacteria. after 3 hours 9500 bateria if the bacteria grew exponecially. janice claims there will be 200000 after 20 hours is she correct

A bakery sells 79 1/4 pounds of baked goods each day. If they triple their sales the next day, how many pounds would they sell?

Meredith works at a blood bank. She needs to write a report of the ratio of type- a blood donated to tpye-o blood donated, but she lost this month's logs that had the quantities. She knows that last month 25 pints of tpye-a blood were donated and 42 pints of tpye-o blood were donated. She remebers that this month 55 pints of tpye-a blood were donated. if the ratio held true for this month, how can Meredith determine the amount of tpye-o blood donated