Jada’s bike wheels have a diameter of 20 inches. How far does she travel if the wheels rotate 37 times? A. 2,549 inches
B. 2,324 inches
C. 2,347 inches
D. 2,515 inches
(SHOW YOUR WORK FOR A BRAINLIEST)

B. 2,324 inches

Step-by-step explanation:

You need to find the circumference of the bike wheels first so that you know how much she would travel if her wheels rotated 1 time. Circumference of circle = pi × d

1 time = 20pi

37 times = 20pi × 37

              = 740pi

              = 2324.778564...inches

The diameter of a cartwheel is 2.1 m. Find the distance travelled when it completes 100 revolutions.

You need to find the circumference of the cartwheels first so that you know how much it would travel if her wheels revoluted 1 time. Circumference of circle = pi × d

1 revolution = 2.1pi

100 revolutions = 2.1pi × 100

                          = 210pi

                          = 659.7344573...m

The diameter of a circular park is 98 m. Find the cost of fencing it at $4 per meter.

You need to find the circumference of the park first so that you know how much it would cost. Circumference of circle = pi × d

Circumference of park = 98pi

Cost of fencing = 4 × 98pi

                          = 392pi

                          = $1231.50

                          ≈ $1232.00

x = 3 ± √(5+y)