In a triangle ABC, tan (a) = 20/21. Find sin (a) and cos (a)

732,178+167-542,137=

If you subtract 426 from 913 how many times would you need to regroup? and how can you tell?

If the reserve rate is 3% and a bank receives a deposit of 16,000 how much of the 16,000 is the bank free to loan out?

If you have $10, and you money doubles every year, how much money will you have in 10 years?

What is the estimated 33 14/15 + 23 9/25

For the school fundraiser, Nicole sold 13 more magazines than Arianna. Nicole sold 19 magazines. Select ALL! of the equations that can be used to find the number of magazines, m, Arianna sold. m+13=19 19-13=m m-13=19 19+13=m

Sharon made bracelets to sell at the craft fair. She spent $10 on supplies to make 30 bracelets. She sold 25 bracelets for $3 each. How much profit did Sharon make on bracelet sales?

Solve the system of equations. y = x + 6 y = x^2 + 8x + 16

Tiffany is packing her bags for her vacation. She has 8unique toy animals, but only 4fit in her bag. How many different groups of 4 toy animals can she take?

Find the prime factorization of 50 using exponents