Simplify

(7r) (-3r^4)

6x - 8 = 16 solve the following equation. then place the correct number in the box provided.

Bring the fraction a/a-4 to a denominator of 16-a^2

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )