Simona's music book includes 50 piano tunes, of which 7 are by Bach, and 18 are by Mozart. If Simona chooses a tune at random, what is the probability that it is either by Bach or by Mozart?

Arianna correctly simplified an expression. When she substituted X = 2 into the simplified expression, the value was - 4. Which could be ariannas original expression?

Lea spent $13 on a magazine and two candy bars. If the magazine cost $7, then how much was each candy bar?

How would I write 3 and 2 over 9 as an improper fraction

how do i complete the square for x^2 + 6x - 5 = 0?

The sum of two numbers is 25. one number is twice the second number plus seven. what are the two numbers

Todd ran 8 laps around a 400-meter track on monday, 4laps on tuesday, 8 laps on wednesday, 4 laps on thursday, and 8laps on friday. how many kilometers did he run?

Amanda found that the equation 10x+5y=20 in the "Linear Equations" chapter of her math book What is an equation that can be written with Amanda's equation to for a pair of linear equations such that the system of equations has exactly one solution?

Solve for x. (x+8) ^2=x^2+4x+16

On Tuesday, Frankie had $154.50 in his bank account. On Wednesday, he withdrew $65.50 from his account. After depositing $275.25 on Friday, how much money did Frankie have in his account? A. $55.25 B. $186.25 C. $364.25 D. $495.25

Sue now has $320. how much would she have after 8 years if she leaves it invested at 8.5% with annual compounding?