Select linear or nonlinear to correctly classify each function

Ten times the square of a non-zero number is eqaul to ninety times the number

Askateboard ramp is in the shape of a right triangle what is the height of the ramp

Fatima plans to spend at least $15 and at most $20 dollars on sketch pads and pencils. if she buys 2 sketchpads, how many pemcils can she buy while staying in her price range? fatima can buy between and pencils. ? (type whole numbers. use ascending? order.)