Zalmon walks 1/2 of a mile in 2/10 of an hour. What is his speed in miles per hour?

Which expression gives you the distance between the points (5,1)and(9,-6)

What is the volume of this container?

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