Is X^8 a perfect square

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Nine more than four times a number is the same as one less than twice the number. find the number?