Between x = 2 and x = 3, which function has an average rate of change that is double that of as y =  12-x + 1  ?

Can someone me and plz do the problem

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?

Find the measure of angle b in the following triangle