Simplify.

7x^3 - 4y^2 - 9x^3+3y^2

Add the fractions and simplify the answer: 1/2 + 2/3

Use substitution: y = x + 1 2y = 3x Use elimination: 2x + 3y = 20 -2x + y = 4

7. A shopkeeper buys 300 identical articles a tota cost of $1500. He sells 260 articles at a price 20% above the cost price Each of the remain anicles is sold at a price that is 50% of the si price of each of the 260 articles Express the

A cylinder has a radius of 6 inches and is 15 inches tall. What is the volume of the cylinder? Express the answer in terms of x

Alvin bakes loaves of bread. Which equation relates the number of loaves he bakes each week (x) to the total number of loaves he bakes in 4 weeks (y) ?

Name three angles that sum to 180 degrees

Count back by one with the number 953

Write two multiplication sentences that have a product of 16

What is the scientific notation for - 20.136

An arithmetic sequence is shown below. You are not given many terms of this sequence, but you do have enough to fill in the missing number. What number goes in the blank? 12, _, 54, ...