Astore sells 12-packs of ballpoint pens for $1.09 each and composition books for $2.79 each. cindy buys m packs of ballpoint pens and n composition books. the store offers a 5% discount for every 50th customer who makes a purchase. if cindy gets the 5% discount, which expression will represent cindy’s bill?

a. 0.05 − 1.09m + 2.79n
b. 1.05 + 1.09m + 2.79n
c. 1.05(1.09m + 2.79n)
d. 0.95(1.09m + 2.79n)

thnx in advance

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

1k

step-by-step explanation:

-6k+7k

(-6+7)k

1k

1. 16.64

a^2+b^2=c^2

pr^2=pq^2+qr^2

pr^2=14^2+ 9^2

pr^2=196+81

pr= sqr root of 277

16.64

2. 11.31

c^2-a^2=b^2

18^2- 14^2=b^2

b^2=324-196

b=sqr root of 126

b=11.31

hope it ! (btw im in connections academy to, good luck! )