Four times a number to the second power divided by seven.
Answer:
Option a) circle 5 meters and 22 meters
Step-by-step explanation:
We are given the following information in the question:
A pair of diameter and the circumference is given. We have to find a correct approximations for the diameter and circumference.
a) circle 5 meters and 22 meters

b) 19 inches and 50 inches

c) 33 centimeters and 80 centimeters

Thus, no pair gives a reasonable approximation. Only the circle with diameter 5 and circumference 22 meters have closest approximation.
I think it's answer choice A.
1/2 divided by 3/1
1/2 multiplied by 1/3 (found up-side-down second fraction and opposite operation)
Multiply across. (1*1 and 2*3)
Write as a fraction (1/6).
The flagstones are 0.8*0.5=0.4 square meters. 169/0.4=422.5 tiles. 422.5 tiles multiplied by 1.2 for waste is 507 tiles, the amount that Liam should buy.