Which relation is a function? a- {(-5,1), (4,9), (6,10)}b- {(0,3), (0,9), (12,-4)}c-{(5,5), (5,9), (5,15)}d- {(-2,10), (-6,10), (-2,3)}

And employees salary increase by $4500 which represents a 15% raise what is the employees new salary

The quadratic function h(t) = -16.1t^2 + 150 models a balls height, in feet, over time, in seconds, after its dropped from a 15 story building. from what height in feet was the ball dropped?

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.