I need an equation for:

You sell brownies for 3 dollars each. You sold 12 more this week than last. Altogether, you made 84 dollars. How many brownies did you sell each week?

When Mrs. JHixson gave a test, the scores were normally distributed with a mean of 78 and a standard deviation of 6. This means that 95% of her students scored between which two scores? A. 72 and 84 B. 66 and 90 C. 60 and 96 D. 60 and 100

Nancy earns 12.50 an hour cleaning houses if she works from 8:00am to 9:00pm, how much money Will she make

Describe the following variation y/x^2=5 A. y varies inversely as the square of x. B. y varies directly as x. C. y varies directly as the square of x. D. y varies inversely as x.

Suppose you are building a brick border for a garden by stacking rows of bricks on top of each other. If the height of each brick is 2.

Use the distributive property in two different ways to find he product of 127 and 32

What is equivalent to 9

The value of a piece of equipment is decreasing at a rate of 7,5% yearly. If the equipment was valued at $930 when it was purchased, which function represents the value of the equipment x years after it was purchased? Explain,

Stephanie is going to contribute $300 on the first of each month, starting today, to her retirement account. Her employer will provide a 50 percent match. In other words, her employer will contribute 50 percent of the amount Stephanie saves.

Kim ran 8 miles in 48 minutes. At the same pace, how far could she run in 60 minutes

Solve for y. a (n+y) = 10y + 32