1. eric and four of his friends are taking a trip across the new york state

thruway. they decide to split the cost of tolls equally.

a. if the total cost of tolls is $8, how much will each person have to

pay?

b. just before leaving on the trip, two of eric's friends have a family

emergency and cannot go. what is each person's share of the $8

tolls now?

a. $1.60

b. $8/3 which is about $2.67

Step-by-step explanation:

a. five friends in total. 8/5 = 1.6

b. three friends left. 8/3 =~ 2.67

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.