What identity can be used to rewrite the expression 4x^2-9?
A. Difference of Squares
B. Difference of Cubes
O C. Pythagorean Triples
O D. Sum of Cubes

Select true or false to tell whether the following conditional p q is true or false. use the truth table if needed. if a week has seven days, then a year has twenty months.

How far is x from 5 on a number line?

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.