In a plan for area codes, the first digit could be any number from 3 through 8, the second digit was either 0 or 4, and the third digit can be any number but 0. With this plan, how many different area codes are possible?

Simplify - 5+4-9r-7+13r

List all ways to get negative six

Awhat is 3a b2 b3 4b2 4 5a identify like terms

Given: 123,456,789. What place is the "2" in?

Determine if the statement is always, sometimes or never true. There are 250 degrees in the sum of the interior angles of a polygon. A. always B. sometimes C. never

If a square has 10 equal parts and 4 are shaded and 6 are blank what is the percent represented by the shaded area

John needs to cut three strips of woods, 25.5 cm, 15.3cm and 9.25cm long. He has a strip that is 72 cm long. How long will leftover piece be after he cuts what he needs?

Which property should be used to solve this equation 4+x=13

a store has some sale on let supplies the price of each item is marked down 25% the store also offers a coupon for 5 off for when you check out write an expression that represents the final price after a customer uses the coupon

T increased by r the answer