Hi, it would be appreciated if you could answer these THREE questions for 25 points. a passenger on a ship dropped his camera into the ocean.

If it is descending at a rate of -4.2 meters per second, how long until it hits the bottom of the ocean, which is at -1,875 meters? (leave your answer in seconds)

Apples cost $1.99 per pound.

How much do 3 1/4 pounds of apples cost? (Round to the nearest cent)

Apples cost $1.99 per pound.

Clare spent $5.17 on apples. How many pounds of apples did Clare buy?(round to the nearest tenth)