Which describes the combined variation in the formula v = ℓwh?

a. v varies jointly with ℓ, w, and h.

b. v varies inversely with ℓ, w, and h.

c. v varies jointly with ℓ and h.

d. v varies directly with w and h

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

The equation |pl = 2 represents the total number of points that can be earned or lost during one turn of a game. which best describes how many points can be earned or lost during one turn? o o -2 2 oor 2 -2 or 2 o

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?