You need to put your reindeer, balthazar, rudy, jebediah, and ezekiel, in a single-file line to pull your sleigh. however, ezekiel and jebediah are best friends, so you have to put them next to each other, or they won't fly.
how many ways can you arrange your reindeer?

12

Step-by-step explanation:

Given

Balthazar,Rudy,Jebediah and Ezekiel in a single-File line to pull sleigh

Jebediah and Ezekiel Stay together

i.e. we need to arrange three person considering Ezekiel and jebediah as Single person

therefore 3 person can  be arrange in 3! ways =6

and also Ezekiel and Jebediah can be arranged in 2 ways

Therefore a total of ways are possible

12

Step-by-step explanation:

Found answer on Khan Academy. :p

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,