Choose the expression that represents a linear expression.

-17x4 - 18x3 + 19x2 - 20x + 21

18x3 + 19x2 - 20x + 21

23x2 + 24x - 25

4x + 4

Does the input-output table represent a function? If it does, list the domain and range. Input 3 4 5 6 Output 14 19 24 29

A 4.5 pound bag of apples cost $22.50. What is the unit price?

What is the unknown number in this equation? 6+3+2=?+8

The sales tax for a certain state can be found by multiplying the purchase price by. What is the sales tax on an item that is $19.49? Express your answer as a decimal rounded to the nearest hundredth.

6 (2x-5y) - 2 (x+9y) simplified

Martha always tries to exercise at least 30 minutes a day. Write an inequality to represent the number of minutes Martha exercises each day.

A swimming pool has perimeter of 72 feet. The short sides measure 16 feet. What is the length of the longer sides of the pool

At the beginning of an environmental study, a forest covered an area of 1500km2. since then, this area has decreased by 7.1% each year. let t be the number of years since the start of the study. let y be the area that the forest covers in km2.

What are the transformations of f (x) = -7 (x-9) ^2+3

A farmer water 3/8 of a field what percentage is equivalent to the fraction of the field the farmer wanted?