Amy's current grades for her assignments in math class are 85, 90, 95 and 80. What grade does she have to earn on her next assignment to attain an average of 90?

1.29 divided by 1.25 =

Niles bought 4 packs of baseball cards. He also spent $14 for a notebook to hold the baseball cards. He spent a total of $23. Niles wrote and solved the equation 4x + 14 = 23 to find the cost of each pack of baseball cards.

You are planning to use a ceramic tile design in your new bathroom. the tiles are blue-and-white equilateral triangles. you decide to arrange the blue tiles in a hexagonal shape as shown.

Find (f+g) (x) for the following functions F (x) = 14x*2+8x+12 G (x) = 9x+4

Marcos is walking his dog along an 8 mile trail. He has walked 4 miles. How many miles does he have left to walk?

What is the x-intercept of the line with the equation y = 1/2 x-3

The half life of ^134Ba is 28.7 hours. how much of a 16.2 sample of 134 Ba will be left after 60.00 hours

WXY is congruent to CBA, If

The school football team needs to raise at least $850 to buy new practice equipment. The team received a donation of $125 and also earns $4 per ticket sold.

Describe when to use a series and when to use an equation. For example, when would you use: f (x) = 3x+5 and when would you use: score = 2 + 3n (where n is 1, 2, 3 ...)