Write or draw to explain two different ways to find the difference for 12-3

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

Mario is constructing a frame for 10 in. by 8 in. photo. he wants the frame to be the same with all the way around in the same area of the frame and photo to be 120 square inches what is the dimension of the frame?

Which term below correctly completes the following sentence? if a function has a vertical asymptote at a certain x value, then the function is what at that value