Find the specified sum for each arithmetic series. 1. 2+5+ 8 +..; S7
2. (-15) + (-10) + (5) +...;S6
3. a1 =9, d=4 ; S5
4. a=32, d= -3 ; S6
5. 4+11 + 18+...; S10

(with solutions)

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship