Acd costs $14.95. this is $7.55 less than the cost of a dvd. write and solve a subtraction equation to find the cost of the did

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

Find measure angle 1 and measure angle 3 in the kite the diagram is not drawn on the scale

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?