Asher wants to place a fence around his backyard. the backyard is 8 feet long and 7 feet wide. what is the total length of fence, in feet, asher needs to place around his backyard?

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

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

Factor the polynomial expression x6 – x3 – 20