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

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Sherrie is baking a pie for her family. she leaves the room and comes back to 35% of the pie having been eaten before she can put the topping on. how much 1 square inch strips of dough will she need for the top, now that a portion is missing? round your answer to the nearest while nimber.