Find the next three terms of the sequence 5,-10,20,-40

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

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.

What is the sum of the first 8 terms of the geometric series