A soccer team is selling shirts and ball caps to raise money to buy new uniforms. Its profit is $8 for each shirt and $5 for each ball cap. The team needs to raise at least
$400.
I need help I don’t know how to graph.

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

To find the extreme values of a function f(x. y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x, y)=xy

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.