Which property is illustrated by the equation 3(mm) = (3m)n?

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

How are algebraic expressions evaluated using substitution?

Find the slope of the line that passes through the points (0, 0) and (-2, -3). 2/3 3/2 -3/2