It’s length times width time height so the first one should be 75 and I have a link to answer them reply If you want it?
Answer:
7 1/2 hours I believe is the correct answer. Hope it works!
M(N+2)+3N+6
M*(n+2)+3(n+2)
Answer
(n+2)*(m+3)
7 multiply by three u get 21 then add it to the number 28 add u get the answer 49