Beth's monthly charge for Internet access y is represented by the function y = 2.50x + 12, where x represents the number of hours of usage during a
month. What is the total charge for a month in which Beth used the Internet
for 9 hours?

y =34.5

Step-by-step explanation:

9 times 2.50 = 22.5 + 12 = 34.5,

so y =34.5

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40