What is the greatest common factor of the terms in the expression 21x-18x+28xy

Two friends, Bob and Ben, each buy one lottery ticket. Each ticket contains six numbers from a total of one hundred numbers (0-99). Bob chooses the numbers 1, 2, 3, 4, 5, 6, and Ben chooses the numbers 39, 45, 66, 72, 74, 89.

Which is more, 10 grams or 12,000 milligrams

If you fall asleep at 2:00am and wake up at 11:30am how long did you sleep for?

You roll a standard number cube. Find P (3 or 4).

A motorcycle purchased for 12,500 today will be valued 7% less each year. How much could you expect to receive for the motorcycle at the end of 4 years of you wanted to sell it?

How to find the unknown measure of a rectangle whose area is 91 and width is 7.

There was 320 girls and 180 boys what is the percentage of girls

Solve the equation for a: a^2 + 7^2 = 11^2 A:8.5 B:13 C:16 D:170

What is 5 multiplied by 2

2^16 in exponential form