The answer is:
3
w^2 - 1 = w + 5
3^2 - 1 = w + 5
3^2 = 3(3) = 9
9-1 = 8
8 = 3 + 5
8 = 8
Answer:
$11.72
Step-by-step explanation:
Add: $42.29 + $87.99 = $130.28
Subtract: $142 - $130.28 = $11.72