I NEED HELP WITH THIS IT'S DUE IN 26 MIN Which description best fits this function over its domain?

What is the rate for one gallon of gasoline

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.

Why is it so easy to buy on impulse and overspend with a credit card? what could you do to counteract this tendency?