Which graph represents the function? f(x)=1/x+1+2

Which is the correct excel formula for the 80th percentile of a distribution that is n(475, 33)? =norm.dist(80,475,33,1) =norm.inv(0.80,475,33) =norm.s.inv((80-475)/33)?

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits