Write the following proportion using colons. 7 is to 21 as 3 is to 9.

Suppose you have $28.00 in your bank account and start saving $18.25 every week. Your friend has $161.00 in his account and is withdrawing $15 every week. When will your account balance be the same?

What is the vertex of the function f (x) = 1x2 + 3x + 3/2

Why is 24/6 not only belong to the sets of rational numbers

The sum of two numbers is - 36. Their difference is 68

What number is the only whole number that is not a natural number?

I need to simplify this expression : 3.2 + (b + 5.7)

What is the standard form of 2x-8y=16

What would 6x-4=10 be?

Mr. Chang had 30 boxes each box has 10 erasers If he gave each student has 2 erasers how many students could he give erasers to

Which of the following relations describes a function? A. { (3, - 1), (3, 1), (4, - 1), (4, 1) } B. { (-3, - 4), (-4, - 3), (3, 4), (4, 3) } C. { (3, 3), (3, 4), (4, 3), (4, 4) } D. { (0, 0), (0, 3), (3, 0), (3, 3) }