How many yards of material will you need to buy to make the 4th of July banner that has a 10-yard diameter?

78.55 Square yards

Step-by-step explanation:

Given data

Diameter= 10 yards

Radius= 5 yards

Area of the Banner

Area= πr^2

Area= 3.142*5^2

Area= 78.55 Square yards

Perimeter

C=  2πr

C= 2*3.142*5

C= 31.42 yards

.95

step-by-step explanation:

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.