Credit cards and charge cards differ in two important ways. one is the method of payment. what is the other difference?
a. you can get a credit card from your bank but not a charge card.
b. you have to pay interest on charge cards but not on credit cards.
c. you have to pay interest on credit cards but not on charge cards.

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

In what organelle does photosynthesis take place?

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)