find all the factors of 38,39 and 40. Do they have any factors in common? Explain how you can tell if some numbers have factors in common without finding the factors.

Write cos 16 in terms of the sine

Sam receives a weekly paycheck. Here's a copy of one of his pay statements. If there are 4 paydays per month, what is Sam's monthly net income? $?

The distribution of GPAs is normally distributed with a mean of 2.7 pounds and a standard deviation of 0.3. Approximately what percentage of students has GPAs above 3.0?

In a board game, each player must roll a number cube and spin a spinner. The number cube is labeled with the numbers 1 through 6 and the spinner consists of eight equal parts shown below.

The number of members in the recycling club increased by 15 people. If the club had 12 members previously, what was the percent of increase of members in the club? Show work

A map has a scale mileage chart with 100 miles equal to 1 inch. If a journey across part of Texas is 650 miles, how long is the map distance?

An initial investment of $100 is now valued at $150. The annual interest rate is 5%, compounded continuously. The equation 100e0.05 = 150 represents the situation, where t is the number of years the money has been invested.

A rectangular billboard 7 feet in height stands in a field so that its bottom is 12 feet above the ground. A nearsighted cow with eye level at 4 feet above the ground stands x feet from the billboard.

A study is done by a community group in two neighboring colleges to determine which one graduate's students with more math classes. College A samples 11 graduates. Their average is four math classes with a standard deviation of 1.5 math classes.

What is 4 (a5+7) + 6 (b7-5)