Xavier goes to the store with $40. he spends $38.60 on 13 bags of popcorn.
a. about how much does one bag of popcorn cost?
b. does he have enough money for another bag? use your estimate to explain your answer.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

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?

Which line is parallel to the line that passes through the points (2, –5) and (–4, 1) a. y=-x+5 b. y=-2/3x+3 c. y=2/3x-2 d. y=x+5