1. Which of the following is irrational?
A)0.4
B)3. 125 bar
C) 0.2496
D ) 3.142968

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13

Mariano delivers newspaper. he always puts 3/4 of his weekly earnings in his savings account and then divides the rest equally into 3 piggy banks for spending at the snack shop, the arcade and the subway

Is (root2 -2)^2 rational or irrational. show the steps and answer fast