There are fourteen people in a library. find the ratio of girls to boys if there are four more girls than boys

Name the quadrilaterals that have four equal sides.

You have 37 coins that are nickels, dimes, and pennies. the total value of the coins is $1.55. there are twice as many pennies as dimes. find the number of each type of coin in the bank.

If the square of a positive integer is added to 2 times the integer the result is 48. find the integer.