Solve this equation using an algebraic method: (x + 4)( x - 4) = 9.

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

Stacey filled her 1/2 cup of measuring cup seven times to have enough flour for a cake recipe how much flour does the cake recipe calls for

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document