Write the sum using summation notation, assuming the suggested pattern continues. 2, -10, 50, -250, +…

Is this sequence arithmetic or geometric? How do you know?

The heaviest 16% of all men in weight weigh more than how many pounds ?

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?