The answer is 75 I believe :)
First, we find how much 1 baseballs card costs.
1 card = 0.60
12*0.6 = $7.20
(2x+3)*4 is less than or equal to 10. For x, the number, you would get x is greater than or equal to -1/4.
How I would do it is place a point at 1 then go up 1 over 4 because of your slope 1/4. Same as for going down except down 1 over 4. Hope this helped:)
24 : 12.5/100 = 24 * 100/12.5 = 192;
