If f(x) = 2x2 + 1, what is f(x) when x = 3? 1 7 13 19

The standard distance between studs in a house is 1.5 feet. if you have a set of blueprints for a house that mark every 1.5 feet with 2 in., by how many inches will a 13-foot wall be represented?

Find an equation for the linear function which has slope -10 and x-intercept -7

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much