Find the value of n that makes △DEF∼△XYZ when DE = 4, EF = 5, XY = 4(n+1), YZ = 7n−1, and ∠E≅∠Y. n =
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Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

Which graph depicts the path of a projectile