In the diagram below, angles a and b are supplementary. The measure of angle a is 5x degrees and the measure of angle b is 2x + 40. How many degrees are in angle a? Show your work.

Mr switzer needs to buy new 1-foot tiles to cover his bathroom floor. the floor is 12 feet long and 8 feet wide. each square foot of tile will cost $1.79. in dollars what will be the total cost of the tiles he needs to buy.

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)

Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?