Determine the sum: (7j9k − 3j2k3) + (−4j9k + 12j2k3). 3j9k + 9j2k3 7j22k8 3j18k2 + 9j4k6 4j9k + 8j2k3

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

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

Find the distance between (7,-6) and (-3,-9)