4+15/3*4-2 4+5*4-2 4+20-2 24-2 22 1st 15/3=5 2nd 5*4=20 3rd 4+20=24 4th 24-2=22 so your answer is 22
3+9^2/9*4-5 3+18/9*4-5 3+2*4-5 3+8-5 11-5 6 1st 9 to the second power will be 9*2 so that is 18 2nd 18/2=9 3rd 2*4=8 4th 3+8=11 5th 11-5=6 so your answer is 6