1. Which of the following is a polynomial? A. 4x3 + 9x5x2 + 7
B. 2x-5 +x+2+x-3 + 2x + 5
C.
1
x2 +3x+6
D. 12-1

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.