Nada spent $28 on 2 dvds at this rate how much would 5 dvds cost at what rate did she spend her money ?

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work:

Angles 1 and 2 are complimentary angles. angle 1 = 52 degrees. what is the measure of angle 2?