PLESE HELP! Often when you buy something, you pay a percent of the price as a tax. Suppose you pay a 7% tax on an item. What percent of the price of the item
will you pay?

Which equation can be used to solve for the unknown number? seven less than a number is thirteen. n-7=13 7-n=13 n+7=13 n+13=7

Ineed i been stuck on this question since yesterday

Becca wants to mix fruit juice and soda to make a punch. she can buy fruit juice for $3 a gallon and soda for $4 a gallon. if she wants to make 28 gallons of punch at a cost of $3.25 a gallon, how many gallons of fruit juice and how many gallons of soda should she buy?