Which is the surface area of the pyramid?
A- 48cm^2
B- 51cm^2
C- 60cm^2
D- 84cm^2
E- 96cm^2

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.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable