At the same time, two trains start toward each other on parallel tracks, 450 miles apart. train a’s constant rate is 55 mph. train b’s is 65 mph. how long before they pass each other?

The value, v, of kalani’s stock investments over a time period, x, can be determined using the equation v=750(0.80)^-x. what is the rate of increase or decrease associated with this account? 20% decrease 20% increase 25% decrease 25% increase