According to a recent study, US adults spent on average 29 hours per month using the PC internet. The time spent on the PC internet follows a normal distribution with mean 29 hours per month and standard deviation 12 hours per month.What percent of US adults spend above 29 hours per month on PC internet? g

The percent of US adults spend above 29 hours per month on PC internet = 50%

Step-by-step explanation:

Given: , US adults spent on average 29 hours per month using the PC internet.

As the me spent on the PC internet follows a normal distribution.

And there is 50% of the population lies above the mean and below the mean.

Then, the percent of US adults spend above 29 hours per month on PC internet = 50%

  180 ft

Step-by-step explanation:

The perimeter of a geometric figure is the sum of the lengths of its sides. Opposite sides of a rectangle are of equal length, so the perimeter can be figured as twice the sum of the length of adjacent sides:

  2(60 ft + 30 ft) = 180 ft

Mrs. Chen needs 180 feet of fence.