Write the pair of fractions as a pair of fractions with a co. mon denominator 2/3 and 5/6

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.