Eliana is using a magnifying glass. The lens of the magnifying glass has a radius of 4 centimeters. What is the lens's area? Use 3.14 for ​pi.

Natasha spent 1 1/2 hours on the beach. she fell asleep for 3/4 of the time she was on the beach and then woke up with a terrible sunburn.how many hours was natasha asleep on the beach?

2-digit numbers less than 91 which are 1 less than a multiple of 10

Because of your favorite lemonade it is $3.84 for 3 gallons. write this as an unit rate