The answer should be Step 1; 3(1+2x)-2(x+1)+5
All you have to do is multiply the area of the base times the length of the height, so:5 1/4*8=42
Answer:volume=42 cubic units
36.
90 times 2/5 (or 0.4) is equal to 36
5000+0=5000 that is g
and then 0+100=100-20=80 that is h