What is the quotient of a-3 over 7 divided by 3-a over 21

What's the verbal expression for a²-18b

Can any one show their work and do these problems 15% of 40 60% of 600 what percent 300 is 300 10%of what number is 30

If an object has two forces acting on it how can the net force equal 0

Kelly spent 45 dollars more on boots than she did on a pair of jeans she spent 79.50 how much did she spend on jeans

Find the common ratio for the following sequence 20, 10, 5, 2 1/2

What two numbers add to 5 and multiply to 4

If I was asked to think of a number and multiply it by 2, I could write this algebraically as 2x. Write the following algebraically, using x as your unknown. "I think of a number, multiply it by itself and then add 6 to the result."

10 skeins of yarn will make 4 scarves. How many scarves can be made with 25 skeins of yarn?

The probability that a new spark plug is defective is 0.06. You need two new spark plugs. What is the probability that both spark plugs you buy are defective? A) 0.06 B) 0.12 C) 0.0036 D) 0.0030

Angie has a jar that contains 2 red marbles, 2 blue marbles, and no other marbles. She randomly draws 2 marbles from the jar. If the marbles are the same colour, she discards one and puts the other back into the jar.