Ellen is 2 years older than her brother luke. Lukes age identify the expression that can be used to find ellens age

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

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.

Which value would be a solution for x in the inequality 47-4x< 7