What is the product of these binomials?

(x - 9)(x + 2) =

a. x2 - 11x - 7
b. x2 - 7x - 18
c. x2 - 7x - 7
d. x2 - 11x - 18

Customers at an ice-cream shop took a survey .the results showed that 144 customers rated the shop as being "very satisfactory ."this number represented 45%of the total nunber of customers who took the survey

Julian wrote the following numeric pattern on the board3,10,17,24,31,38.what numbers of julian's pattern are compound numbers.

How do i put 3(x+7) in distributive property