If Steve paid back $7,945 on a $7000 simple interest loan after 3 years. What was the interest rate?

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

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

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.