Translate the sentence into an equation.
the sum of 2 times a number and 3 equals 7.
use the variable b for the unknown number.

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Solve with work adding cheese to a mcdonalds quarter pounder increases the fat content from 21g to 30g. what is the percent of change ?

What’s the answer ? use the picture to see the problem