Melanie sold half of her comic books and then bought 8 more. She now has 15. How many did she begin with

Which one is a prime number?,11,21,51,

What is the product of the following expression? 2x (x^+x-5)

John is running in a race the race is 25 miles long after two hours john has run 7 miles how many miles does john have left to run

What is the are of the kite 10 m 8 m

What is the sum of the polynomials? 62.9+63-11

Tanisha expects that each person will drink two 8 ounce glasses of lemonade at the party. Write an expression to show the words. How many ounces of lemonade does Tanisha need to make

The volume of a swimming pool from its construction plan is calculated to be 20 cm3. Find the volume of the pool if the plan has a scale of 1 : 75

Natalie charges $1490 per month to rent each of her three rental houses. Natalie must pay $5850 in maintenance cots per house per year. If all three houses are occupied, how much money will Natalie earn over seven years?

Rational roots for 0=Xsquared+2X+3

Is 3 (2a - b) and 6a - 3b equivalent?