It takes james 16 hours to harvest the field. nick can harvest the same field in 10 hours. if they work together how long will it take them?

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?

Is of - 4x + 2? a. 3 b. 4 c. 6 d. 5