Answer:
Step-by-step explanation:
2x²-13x+21+6x²+29x-5
=8x²+16x+16
$22 for popcorn and $8 for pretzels together it would be $30
The graph is shown in the attached image
x = 20
Solve for x by simplifying both sides of the equation, then isolating the variable.
2.40
