Vera is using her phone. Its battery life is down to 2/5 , and it drains another 1/9
every hour.
How many hours will her battery last?

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

Maren is buying carpet for her rectangular living room. the room is 4.8 yards wide and 5.2 yards long. how much carpet does she need to buy? enter your answer as a decimal in the box. yd2