Last year shantell bought a car for 24000 the current value of the car is 21000 find the percent decrease in the value of the car

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?

Round each decimal to the nearest thousandth. a. 5.39562 b. 0.12345 c. 5634 d. 18.93763