There are 720 dishes that need to be rinsed. scott can rinse them in 72 minutes by himself. it will take his friend d 90 minutes to rinse these dishes . how long will it take them if they rinse these 720 dishes together

Select the correct answer from each drop down menu

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

It says factor each expression 49x-28?