11. Let a square represent the value of x and a circle represent 1. Which of the following expressions
accurately represents 2(3x + 5) ?
OO
A
DOC
+
B.
+
2
C.
+00000
D.
+ 00000
E. OO000

Solve for x, y, and z. show all steps.

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

14. (05.02 lc) what is the value of y in the solution to the following system of equations? (5 points) 2x + y = −4 5x + 3y = −6