Find the answer to the following problem. a coin collection worth $3.45 contains nickels, dimes, and quarters. if there are twice as many dimes as quarters, and the number of nickels is 9 more than the number of quarters, find the number of each kind of coin.

The number of 8th graders who responded to a poll of 6th grade and 8 th graders was one fourtg of the number of 6th graders whi responded if a total of 100 students responddd to the poll how many of the students responded were 6 th graders

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

Eiko is wearing a magic ring that increases the power of her healing spell by 30%30\%30%30, percent. without the ring, her healing spell restores health points. which of the following expressions could represent how many health points the spell restores when eiko is wearing the magic ring?