As a fundraiser, a school club is selling posters. the printer charges a $27 set-up fee, plus $0.75 for each poster. then the cost y in dollars to print x posters is given by the linear equation
y=0.75x+27.

a. what is the cost y in dollars to print 50 posters? 100 posters?

Step-by-step explanation:

The printer charges a $27 set-up fee, plus $0.75 for each poster. The set up fee is constant.

The cost y in dollars to print x posters is given by the linear equation

y=0.75x+27.

a) To find the cost, y in dollars to print 50 posters, we will substitute 50 for x in the given linear equation. It becomes

y=0.75x+27

y = 0.75 × 50 +27

y = 37.5 +27 =$64.5

b) To find the cost, y in dollars to print 100 posters, we will substitute 100 for x in the given linear equation. It becomes

y=0.75x+27

y = 0.75 × 100 +27

y = 75+27 =$102

i pretty sure it is

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.