Assume x=x(t) and y=y(t). find dx/dt if x^2(y-6) = 12y + 3 and dy/dt = 2 when x = 5 and y = 12

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Which statement about the annual percentage rate (apr) is not true?

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)