If a and b are real numbers, which equation represents the associative property of multiplication? a. (a • b) • c = a • (b • c) b. a • b = b • a c. (a + b) + c = a + (b + c) d. a • b = 0

the answer is A

Step-by-step explanation:

got it right on quiz

hope this helps

(23*2)-12=x     x=34

step-by-step explanation:

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°