30-(increase/0.5)*2=sold
i*s=revenue
i*30-(i^2/0.5)*2=r
I=7.5=>r=0
i=7=>r=14
7/0.5=15 number of increases in the cost
You need to see what you need to convert and how you need to convert it, do you need to divide to find out how many it goes in? Questions like that.
Answer:
A.
Step-by-step explanation: By looking at the image it shows 2 not 4.
Answer:The answeris 66 inches.
Step-by-step explanation: