A Fun Park refreshment stand sells only hotdogs and nachos. Hotdogs cost $2 and nachos cost $3. Marcus and his friends spent $34 at the refreshment stand. All together, they
ordered a total of 14 items. How many hotdogs and how many nachos did they buy?
Write a system of two linear equations in two variables that can be used to model the
situation. Then choose a method to solve the system. Show your work and check your
answer.

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

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Write the slope intercept equation for line ab.