What is the answer to this equation
(4,-8) and (8,5)

Estimate the product. round the first factor to the nearest whole number, round the second factor to the nearest ten, and then multiply. 3 8/9 × 96

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line