You need to put your reindeer, Prancer, Quentin, Rudy, and Jebediah, in a single-file line to pull your sleigh. However, Rudy and Prancer are best friends, so you have to put them next to each other, or they won't fly.

The correct answer is 12.

Step-by-step explanation:

There are four reindeer, Prancer, Quentin, Rudy, and Jebediah.

They are supposed to be put in a single file line to pull the sleigh.

However, Rudy and Prancer are best friends and need to be together, or they won't fly.

Thus the number of ways the reindeer are arranged are 3! × 2! = 6 × 2 = 12.

Therefore the reindeer can be arranged in 12 different ways to pull the sleigh.

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold