The price p (in dollars) and the quantity x sold of a certain product obey the demand equation:
x = -20p + 500 where 0 < p ≤ 25
revenue, r, can be found by the following equation: r = xp. express r as a function of x hellppp?

Find parametric equations for the line tangent to the curve of intersection of the surfaces at the given point. surfaces: xsquared2plus+2yplus+2zequals=1212 yequals=33 point: left parenthesis 1 comma 3 comma five halves right parenthesis

Write and solve a real word problem that involves determining distance on a coordinate plane

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.