Write a nonstatistical question that you could ask your classmates that has to do with lunch.​

X+ y = 5 ; x - y =3 solve using linear combination

Simplify the following expression 48^1/2

Atourist boat is used for sightseeing in a nearby river. the boat travels 2.4 miles downstream and in the same amount of time, it travels 1.8 miles upstream. if the boat travels at an average speed of 21 miles per hour in the still water, find the current of the river.