Which number sentence is NOT an inequality?

The bike store marks up the wholesale cost of all the bikes they sell by 30% and andre wants to buy a bike that has a price tag of 125 what was the wholesale cost of the bike

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?