If a garden has an area of 100 square feet how much fencing is needed to enclose the garden

Depends on the dimensions of the garden 
the most economical for resources is 10 ft*10 ft=100 sq ft

If 10 x 10 then fencing needed is 4 x 10 =40

if 5 x 20 then fencing needed is 5 x 2 + 20 x 2 = 50

so it depends on its shape, there are several answers if you stick with whole numbers and many more if you use fractions e.g 2.5 x 40

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.