Dana wants to solve 72 × 3 = □. which strategy could she use? a. (70 × 2) + (70 × 3) = □ b. (70 × 3) + (2 × 3) = □ c. (7 × 3) + (2 × 3) = □ d. (7 × 2) + (7 × 3) = □

Jocelyn estimates that a piece of wood measures 5.5 cm. if it actually measures 5.62 cm, what is the percent error of jocelyn’s estimate? a. 2.13% b. 2.18% c. 12% d. 46.83%