A. Pulley C.
B. Pulley D.
C. Pulley B.
D. Pulley A.
A. elastic recoil.
B. friction.
C. equilibrium.
D. gravity.
A. interested
B. pleased
C. veteran
D. novice
A. $51.99
B. $45.93
C. $53.91
D. $54.50
A. is less expensive
B. may not work properly
C. improves safety
D. increases maintenance
A. C
B. D
C. A
D. B
A. 1/2
B. 7/8
C. 1/3
D. 1/4
A. 4
B. 2
C. 4
D. 2
A. 1.86 square feet
B. 1 square foot
C. 0.86 square feet
D. 5.86 square feet