it is an inequality problem
You need to get C on one side first. This is done by subtracting 2.8 from both sides.
2.8-2.8-(c/f)>=7.4-2.8 which is the same as (-c/4)>=4.6
Next, you need to multiply both sides by 4:
Finally, you want to make the c positive by multiply both sides by negative 1. This will also flip the inequality
I hope this helped!
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