Answer:
18.4
Step-by-step explanation:
w = 10
10w + 3w + w + 40 = 180 Combine like terms
14w + 40 = 180 Subtract 40 from both sides
14w = 140 Divide 14 from both sides
8+5x^2-x-5
=5x^2-x-5+8
=5x^2-x+3
Hope this will help u.
