Write an equation of the line in slope-intercept form

Given the statements, "a square root of 16 is 4," and "a square root of 9 is -3," complete the following blanks with the correct truth-values. p is and q is , so the statement, "a square root of 16 is 4 or a square root of 9 is -3" is .

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

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