Kenisha uses the fermi process to estimate the number of dollar bills that would cover her driveway. her driveway is rectangular in shape.

she estimates a dollar bill to be about 6 in. long and 3 in. wide.
she estimates her driveway to be about 30 ft long and 20 ft wide.
which expression should kenisha use in the process?

9×10^4/2×10^2

6×10^2/2×10^1

6×10^2/2×10^2

9×10^4/2×10^1

option A

9×10^4/2×10^2

Step-by-step explanation:

Given in the question,

length of dollar bill = 6

width of dollar bill = 3

area of dollar bill = L x W

                            = 6 x 3

                            = 18inches²

length of driveway = 30

width of driveway = 20

area of driveway = L x W

                             = 30 x 20

                             = 600 ft²

1 ft² = 144 inches²

600 ft² = 86400 inches²

Number of dollar bills that would cover Kenisha driveway = 86400 / 18

Which can also be written as

86400 = 9 x 10

18        = 2 x 10²

start with a line segment pq that we will copy. mark a point r that will be one endpoint of the new line segment. set the compasses' point on the point p of the line segment to be copied. adjust the compasses' width to the point q. the compasses' width is now equal to the length of the line segment pq.

step-by-step explanation:

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.