Factor the expression below 4x^2 - 1

(x-1)(4x-1)
(x-1)(4x+1)
(2x-1)(2x-1)
(2x-1)(2x+1)

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

How many $20 bills do you need to have to make $280

Solving algebraic equations 2m+3=11