If the book cost 42.50 and you get a discount of 8%. what's the textbook costs?

Which point is on the line y=-2+3? (-2,-1) (3,3) (3,-3) (-3,-9)

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

I’m really confused and need to learn this