Use the geometric mean (altitude) theorem. what is the value of m?

The altitude is the mean proportional between the left and right parts of the hyptenuse

20/m = m/8
m² = 20 · 8
m² = 160
m = √160
m = 4√10

Answer for 2: his profit would be $2.88 explanation: you have to first multiply 72 and 0.12 together to get $8.64 once you do that you know how much money the shopkeeper made from selling the candy bars individually. so you have to do 8.64-5.76=2.88 hope that ; )answer for 3: yeah i’m sorry i have no idea what number 3 is. i’m sorry i couldn’t with that.