The sum of two numbers is 47. the greater number is 9 more than the smaller number. which equation can be used to solve for the smaller number?

What can you determine about the solutions of this system

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5

You went to a restaurant and spent $53.25 on the meal. there was a 6% sales tax. what was the amount of money, not including a tip, you spent at the restaurant?