Which pairs of ratios form a proportion? choose all that apply.

a. 1/6, 4/20
b. 7/9, 28/36
c. 14/18, 21/27
d. 30/80, 6/18

Given a circle with measures of (c, d, and r) and a circle with measures of (c', d', and r'), what is d if c c' = 12 and d' = 0.50? a) 3 b) 6 c) 12 d) 24

The table shows the webster family’s monthly expenses for the first three months of the year. they are $2,687.44, $2,613.09, and $2,808.64. what is the average monthly expenditure for all expenses?

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take