In how many different ways can up to 4 students be selected from 6 girls and 7 boys if each selection must have an equal number of girls and boys?

The domain of a quadratic function is all real numbers and the range is y ≤ 2. How many x-intercepts does the function have?

What is the difference between - 25 and - 12

Safe cracker riddle, 4 digit from 1 to 9 are required to open a safe. the sum of the digit is 20. the first digit is greater than the third. the second and fourth digits differ by at least 5. exactly 529 digits are square.

Find the volume of a sphere that has a surface area of 16π sq. in.

What is the zero product property?

What is the answer to 12 (4x+2)

Josephine was asked to make a one-fiftieth scale model of the new water tower for her town. She constructed the model that is shown below. The height is 2.25ft and 1.

Find the number of moles in 508 g of ethanol (C2H5OH).

If y=12 when x=9 find your when x=-4

Calling walk distance 15 miles in 6 hours work out average speed.