By buying two shirts, Alex will save $26 x \( \frac{10}{100} \) = \( \frac{$26 x 10}{100} \) = \( \frac{$260}{100} \) = $2.60 on the second shirt.

So, his total cost will be
$26.00 + ($26.00 - $2.60)
$26.00 + $23.40
$49.40

Betty scored 75% on the test meaning she earned 75% of the possible points on the test. There were 180 possible points on the test so she earned 180 x 0.75 = 135 points. Each question is worth 3 points so she got \( \frac{135}{3} \) = 45 questions right.

Calculate the number of vans needed by dividing the number of people that need transported by the capacity of one van:

vans = \( \frac{96}{10} \) = 9\(\frac{3}{5}\)

So, it will take 9 full vans and one partially full van to transport the entire team making a total of 10 vans.

In order to find how many additional workers are needed to staff the extra crews you first need to calculate how many workers are on a crew. There are 16 workers at the company now and that's enough to staff 4 crews so there are \( \frac{16}{4} \) = 4 workers on a crew. 8 crews are needed for the busy season which, at 4 workers per crew, means that the roofing company will need 8 x 4 = 32 total workers to staff the crews during the busy season. The company already employs 16 workers so they need to add 32 - 16 = 16 new staff for the busy season.

A factor is a positive integer that divides evenly into a given number. For example, the factors of 8 are 1, 2, 4, and 8.