C Would Be Correct I Belive
the answer to the function would be 37 because w(7) shows that the variable would equal 7. So 5x7 would equal 35 plus 2 would give you 37.
8v + 8b = 240
4v + b = 54....multiply by -2
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8v + 8b = 240
-8v - 2b = - 108 (result of multiplying by -2)
------------------add
6b = 132
b = 132/6
b = 22 <== buses hold 22 students
4v + b = 54
4v + 22 = 54
4v = 54 - 22
4v = 32
v = 32/4
v = 8 <== vans hold 8 students
It will take <u>10 years</u> for the investment to reach $1,000.
<em>Sure hope this helps you</em>