Brian's comic book collection increased from 120 to 150 comic books. By what percentage did his collection increase?

Which of the following ordered pairs is a solution of x + 1/2y = 1 1.) (-2, 6) 2.) (2, - 6) 3.) (-2, - 6)

What does x equal? 4+x=7

A+b = 17, ab=70, Find the value of |a-b|

My car gets 27 miles per gallon of gas. If I drive 513 miles, how many gallons of gas will I use?

Rachel used 12 cubes to make this 3-step staircase. if she uses a total of 42 cubes to make a similar staircase, how many steps will the staircase have? think of usiing objects to solve this problem

What is (3x + 5) - (x + 2)

1. Simplify. tan (x + 540) 2. Simplify the expression. sec (x - 360) 3. Simplify. 5cos (x) + 3cos (-x)

When looking at a rational function f of x equals the quantity x plus three times the quantity x minus two times the quantity x plus five all divided by the quantity x minus three times the quantity x plus two times the quantity x minus 5, Charles

recently 5/8 of the items sold at Debbies Sporting Good were baseball caps. at Sasha Sports 7/10 of the items sold were baseball caps which store sold a greater fraction of baseball caps?

You want to find the height of a tower used to transmit cellular phone calls. You stand 100 feet away from the tower and mesure the angle of elevation to be 40°. How high is the tower to the nearest foot