450÷50=9
Your answer would be 9inches because all you have to do is divide 450 by 50 and you get the number of inches
the student has left 75 because if you add 5 and 70 it gives you $75 that's how much the student had left.
Answer:

Step-by-step explanation:
we know that
Using proportion

The large box is less expensive per ounce.
large box small box
cost 4.16 2.38
content 32oz 14oz
cost/oz 0.13 0.17
*4.16/32 *2.38/14
The large box is less expensive than the small box. The large box is cheaper by 0.04 per ounce.
Addition or Subtraction
Addition or Subtraction
Multiplication or Division
Multiplication or Division
all of order. I'll have to confirm this though