Answer:
Step-by-step explanation:
178

30% of 70 is 21.
Yes, it's right, but the answer is 21, not 21%.
Answer: All integers must be whole numbers
Step-by-step explanation: By definition, integers are positive, whole numbers meaning it cannot be a decimal or a fraction. I think you were given a trick question.
Set up a proportion:
First convert 75 inches to feet.
75 in = 6.25 ft
1/6.25 = x/50
Multiply 50 to both sides:
50 * 1/6.25 = x
50/6.25 = x
x = 8
So the tire will rotate 8 times after Frank rides 50 feet.
1.) 1/9, 2/18, 3/27
2.) 6/10, 12/20, 9/15