Convert the following equation from polar to rectangular form: theta=2pi/3

Which quadratic function best fits this data? x y 1 32 2 78 3 178 4 326 5 390 6 337 a. y=11.41x2+154.42x−143.9 b. y=−11.41x2+154.42x−143.9 c. y=11.41x2+154.42x+143.9 d. y=−11.41x2+154.42x+143.9

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9