Two trains are 390 miles apart they start at the same time and travel towards one another meeting 3 hours later if the speed of kne train is 30mph more than the speed of the other trainfind the speed if each train

Solve 2x2 + 8 = 0 by graphing the related function. there are two solutions: . there are no real number solutions. there are two solutions: 2 and -2

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years