Question 14. A van moves for 4 hours 28 minutes at a constant speed of 120 km/h and
then for another 3 hours 32 minutes at a constant speed of 90 km/h. What is its average
speed for the whole trip? Show your working out help, i need the answer now, it's on decline​

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.

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

(03.03 mc) choose the graph below that correctly represents the equation 2x + 4y = 24. (5 points) select one: a. line through the points 0 comma 6 and 12 comma 0 b. line through the points 0 comma negative 6 and 12 comma 0 c. line through the points 0 comma negative 12 and 6 comma 0 d. line through the points 0 comma 12 and 6 comma 0