Can someone please tell me if I got this right or wrong? I’ll give brainliest

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population,find the population standard deviation, o.79828588912497

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

An alternative to car buying is to make monthly payments for a period of time, and then return the vehicle to the dealer, or purchase it. this is called