What is pi + pi
Please help me
And is pi 3.14

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Just tell me how to set up the equation.

Which of the following shows the length of the third side, in inches, of the triangle below