The least common multiple of two numbers is 84, and one of the numbers is 5 less than the other number. what are the numbers?

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

Use sigma notation to represent the following series for 9 terms.

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.