Using The Formula solve this quadratic equation: x²-x-1=0

f

step-by-step explanation:

f

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

42.4 6th grade students prefer hip hop

step-by-step explanation:

40 percent of 106 = 42.4

2+2=4

4-5=-1

is that your