Answer:
20 dollars
Step-by-step explanation:
I think 20+20+20=60 then 60-40=20
(b+1)/2b
quotient = divided by
we're dividing a number that is 1 more than b (b + 1), with a number twice as large as b (2b).
F(x)=x²+2x-1 and g(x)=2x-4 <span>2f(x)-3g(x)=?
</span>2f(x)=2*(x²+2x-1)=2x²+4x-2
3g(x)=3(2x-4)=6x-12
2f(x)-3g(x)=(2x²+4x-2) - (6x-12)= 2x²+4x-2 - 6x+12 =2x²-2x +10
<em>2f(x)-3g(x) = 2x²-2x +10</em>