It is: JETPACK01, enter it where you enter codes for SC, or where you put the code for it.
To solve the expression (3z + 74z), you simply combine like terms. Both terms contain the variable (z), so you add their coefficients: (3 + 74 = 77). Thus, the simplified expression is (77z).
It can be anywhere from between 1000 U.S. dollars and 2500 U.S. dollars. It just depends on who the buyer is and where you are located.