If you want the height of the crate it's volume / base area = 48/16 = 3 feet.
Switch sides of your problem so it would look like
r -5=-4
20
multiply both sides by twenty
after that it would look like r-100=-80
then add 100 to both of your sides
then after your answer would be r=20
B is a ratio but there are no units so it’s not a rate.
Your answer is 15 hope I helped
20 % hope this helps you out good luck
