C(b) = 2.75b + 10
This is based of the f(x) = mx + b formula, where m is the slope, x is the variable (or input) and b is the y intercept. In this circumstance the slope is 2.75, so we change m for 2.75. The variable is the amount of books so we change it for b (like it says in the word problem), and and 10 is the starting cost, so it’s the y intercept, so we change b for 10.
Hope this helps! Please make me the brainliest, it’s not necessary but appreciated, I put a lot of effort and research into my answers. Have a good day, stay safe and stay healthy.
Answer:
See below for step-by-step proof.
Step-by-step explanation:

























Answer:
Triangle ABC has been translated 1 unit to the left and 4 units up
Step-by-step explanation:
Choose one of the points, for example B, and follow the units to B prime and see how many units vertically and horizontally the point as been translated.
Answer:
what are the numbers?
Step-by-step explanation:
I need the numbers to help you
ok??
What fraction of the length is the width of the book
is 2:3