The answer is 7. You can solve it by going through all the answers and testing the math. 7 x 15$ = 105 so add that to 3 x 25 = 75 and it proves it equals 180$.
Hello : <span>y = –2x – 1....(1) y = 3x–1.....(2) by (1) and (2) : 3x-1 = -2x-1 5x =0 x =0 ....(</span><span>the x-coordinates of the solutions)</span>
