in order to stay under his budget of 45 dollars he can get any number of gigabytes less than 3. Its not less than or equal to, because he wants to keep his bill UNDER 45 dollars, and 3 gigabytes plus his plan amounts to 45 dollars exactly.
A) 6 Replace the y with 6 4(6)+13=37 Multiply 24+13=37 Add 37=37 I hope this helps :) If you have any questions about my answer please feel free to ask:)
