Anormal distribution has a mean of 50 and a standard deviation of 5 what percentage lies betwen 40 and 60

Aboat's value over time is given as the function f(x) and graphed below. use a(x) = 400(b)x + 0 as the parent function. which graph shows the boat's value increasing at a rate of 25% per year?

Adaycare center charges a $75 enrollment fee plus $100 per week. which of the following represents the cost of sending a child to daycare for 14 weeks?

Ineed with number 6 , explain how to get 1978