Answer:
B
Step-by-step explanation:
I don't get this question. Because if it is this simple, the two whole numbers are 40 and 42
20/q = 7/9
20×9 = 7q
7q = 180
q = 180/7
To fint the length first one must find circumference to do that we use the formula D*Pi (diameter times Pi. Diameter = 8 Pi is the constant of 3.1415
so. 8*3.1415 = appox 25.1327. cow that we have circumference we should multiply by the amount of times the wheel rotates (15)
so. 15*251327 = appox 376.9911in now convert to feet. 12 in = 1 foot so divide by 12
so 376.9911 / 12 = about 31.4
round down to 31 feet
The answer of this problem is A because 3 times 21 is 63 and then you plus 1
which is 64
