Can someone help me on this pleaseee

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

Which of the following is not a subset of {1,2,3}?