The price of gas last summer was $3.80 and this summer it is $1.90. What is the percent of decrease.

What is the value of the function y = 2x + 3 When x = - 1? A. 5 B. - 5 C. 2 D. 1

find the exact value of cos 157.5°.

1. Identify the base and the exponent in the expression 10^15

The Perez family is buying a house that is $178,790. They are paying 10% of this amount as a down payment. What is the best estimate of their down payment? $1,800 $17,000 $18,000 $20,000

Convert the fraction to higher terms. Enter the value of the missing denominator: 2/3=14/?

Isabella is making a huge flag of her country, the Republic of Seychelles, on a canvas 20 by 10 meters long. To do that, she has to draw a diagonal line that begins at the bottom-left corner and ends at the top side of the flag, 6.

For a sale, a store decrease its prices on all items by 25%. An item that cost $120-0.25 (120). what is another expression for the sale price?

In the unit circle, the value of sine is the y-coordinate of the unit radius. What is the value of cosine? a. x-coordinate b. quadrant IV c. a function d. tangent

What does the abbreviation "m" stand for in math?

Two factors of - 48 have a difference of 19. The factor with a greater absolute value is positive. What is the sum of the factors? a. - 19 b. - 13 c. 13 d. 16