Given f(x)= x2+4x, g(x)= Square root X +2, and h(x) =3x-5, find each function and it domain. (Please help I’m in an exam and can’t solve this problem)

Add or subtract polynomial : –12qr? +13rq?

Let r = 3. what is the value of r + 58?

The contents of 3838 cans of coke have a mean of x¯¯¯=12.15x¯=12.15. assume the contents of cans of coke have a normal distribution with standard deviation of σ=0.12.σ=0.12. find the value of the test statistic zz for the claim that the population mean is μ=12.μ=12.