What is 2.405 in word form and expanded form

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

Is a square always, sometimes, or never a parallelogram

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.