David sold mugs at a crafts show. On the first day, he sold 7 mugs but lost $ 5.50 on each mug. On the second day, he raised his price and sold 8 mugs with a profit of $ 4.70 on each mug. What was his total profit or loss? Write a profit as a positive number and a loss as a negative number.

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

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Acolony contains 1500 bacteria. the population increases at a rate of 115% each hour. if x represents the number of hours elapsed, which function represents the scenario? f(x) = 1500(1.15)" f(x) = 1500(115) f(x) = 1500(2.15) f(x) = 1500(215)