What is the missing polynomial?

? - (20 - 4x - 5x2) = 20 - 7x2

A. 4x-12x^2

B. 4x-2x^2

C. 40-4x-12x^2

D. 40-4x-2x^2

What is more 10/4 miles or 5/2 miles?

You spend up to 35 dollars on a shopping trip. You want to buy a 14 dollar shirt. Identify the amount of money in x and solve he inequality

18/30 reduce into fraction

P = a + b + c; P = 28, a = 5, b = 11 (Perimeter of a triangle)

Sarah has $18.00 and she earns $7.25 an hour at work. what's the equations

Catherine is buying a new TV and is looking for the best loan to pay for her purchase. What loan should she choose? A. Loan with the highest APR B. Loan with the highest APY C. Loan with the lowest APR D. Loan with the lowest APY

The terms in a sequence are given by 3 + 2x. what are the first 6 terms in the sequence?

The price of an item at markdowns department store is $110.95. you have a coupon for 10% off any purchase over $100.00. how much will you save by using the coupon?"

How to substitution math work

Tyler is 5 years younger than three times his cousin Lejla's age. Tyler is 40 years old. Let l represent Lejla's age.