Zaira spent 55 hours in 2 weeks working on a science project. she worked 32 hours the first week. write and solve an addition equation to find the amount of time she spent working the second week.

Is a positive integer raised to a negative power always positive

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Ian is in training for a national hot dog eating contest on the 4th of july. on his first day of training, he eats 4 hot dogs. each day, he plans to eat 110% of the number of hot dogs he ate the previous day. write an explicit formula that could be used to find the number of hot dogs ian will eat on any particular day.