Solve the equation. type the integer with it 32=8y

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

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)