The monthly utility bills in a city are normally distributed, with a mean of $120 and a standard deviation of $15. A utility bill is randomly selected. Find the probability that the utility bill is less than $70.

correct answer:

i^31 = -i

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph