In a game, Theodore received a handful of coins (pennies, nickels, dimes, and quarters) as a prize.
When he got home, he found that he had managed
to get $2.09 in change. He noticed that he had
three times as many pennies as dimes, one more
nickel than dimes, and twice as many quarters as
dimes. How many quarters did Theodore get in
his prize?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions

Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212