Sadie measured the floor of her storage unit, which is rectangular. It is 9 meters wide and 10 meters from one corner to the opposite corner. How long is the storage unit? If necessary, round to the nearest tenth.

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