It cost $20 per hour to bowl and $3 for shoe rental. write a verbal model and algebraic expressions to represent the cost for n hours and identify the units for the expression

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Pls the last one and it has to be like number 6

Plz hurry finals a paper cup in the shape of an inverted cone is 8 inches tall and has a radius of 1.5 inches. how much water can the cup hold? use 3.14 for pi. round the answer to the nearest tenth. a) 12.6 cubic in. b) 18.8 cubic in. c) 37.7 cubic in. d) 56.5 cubic in.