A 9-ounce box of strawberry gelatin costs $0.90, and a 6-ounce box costs $0.42. What is the difference in cost (per ounce) between the larger and the smaller boxes?

What is the best reason for jacinta to have a savings account in addition to a checking account

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.