Which story represents the graph below?
cost
time
the cost of gas rises, and then doesn't change for while. the cost falls before finishing with a sharp increase.
the cost of milk rises, until it hits a steady cost. then it goes on sale, before a sharp increase in cost.
both of the above
neither of the above

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

47 - 90 = 43

43 - 180 = x

x = 137

answer:   (s+1)(s+4)

step-by-step explanation:

factor s2+5s+4

s2+5s+4

=(s+1)(s+4)