In one week Jenny worked a total of 22 hours at a movie theater and a car wash. Jenny earned 8.50 per hours at the movie and $8.00 per hour at the car wash. She earned a Total of 181 for a week A. 8 B. 10. C. 11. D. 12

Which value of c would make he following expression completely factored? 8x+cy

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?