Ginny has a 15.3 page long book report to finish by friday. on monday she does 4.48 pages. on tues she does 5.23 pages. on wednesday, she does 1.9pages. how many pages has ginny done so far?

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

Ineed me i stuck and i don’t want to get it wrong

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.