Find the measure of the missing angles. One of them is wrong I’m not sure which one. (Picture included)

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)

92ft long and 48 wide resurface 2.75$