Which of these is an algebraic expression? a. 1 + 2 b. 2b – 5 c. 6 × 4 d. 102

Phillip had some bricks. he stacked them in 6 equal piles. which expression shows the number of bricks phillip put in each pile? let the variable m stand for the unknown number of bricks. m + 6 m÷6    m−6    6m

Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm