13 years ago mario or 71 years old how old is she now

Use the numbers in the multiplication equation 45 x 1/9 =5 to write a division equation involving division by a fraction.

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

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}