Evaluate 20/y - 8/x + 3xy/x+y when x=2 and y=5

Translate the following words to algebra symbols, using "n" as the variable. Seven is two less than twice a number.

Emily is entering a bicycle race for charity. Her mother pledged $0.40 for every 0.25 mile she biked. If Emily bikes 15 miles, how much will her mother donate?

What is the test that you can do to tell if a graph represents a function? A. the horizontal line test B. the vertical line test C. the expression test D. the litmus test

3 times the sum of b and f, can also be written as: A. 3 + b + f B. 3bf C. 3 (b + f) D. 3b + f

Which fraction has the greatest value? 1/15 1/20 1/10

Six identical square pyramids can fill the same volume as a cube with the same base. If the height of the cube is h units, what is true about the height of each pyramid? O The height of each pyramid is 1 h units.

True or false, a fraction never indicates a ratio

2x+3y+z=4 -3X-4+52 = 1 X+3y=5

5 , - 15 , 60 , - 300 , 1,800 , - 12,600

The order of magnitude for the population of the world is five. true or false?