Find the center, vertices, and foci of the ellipse with equation x^2/400 + y^2/256=1

at the end of the trip the choir had to have their uniforms cleaned. Every one of the 107 choir members has 3 uniforms and each uniform has 4 pieces. It costs $2 to clean each piece of the uniform.

Subtract (3x^2 + 2x+4) - (x^2 + 2x+1) =

What is 1/20 as decimal

Emma wanted to make a bedcover, 80cm by 70cm, with squares of quilted fabric. What were the dimensions of the largest squares she could use?

A salsa recipe uses green pepper, onion, and tomato in the extended ratio 1:3:9. How many cups of onion are needed to make 117 cups of salsa?

11,760,825 in expanded form

What's 9x - 7 = - 7 show your work

Find all the the real square roots of 144

Inez and Felicia had three days to read a book. Inez read 40 pages the first day, 60 pages the second day, and 125 pages the third day. Felicia read the same book, but she read an equal number of pages each of the three days.

Which direction does the graph of f (x) = 15x + 11 - x2 open? Up Right Down Left