What's the retail price of $1.50 with a 20% increase

Convert the cartesian equation (x 2 + y 2)2 = 4(x 2 - y 2) to a polar equation. choices: r4 = -4r2 r2 = 4cos2θ r2 = 4sin2θ

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?

What rotation was applied to triangle def to create d’e’f’?