$(7$pts$)$ Translate each instruction into machine code $($in hexadecimals$).$ Show your work.

$1\mathrm{.}1$ add x$15,$ x$6,$ x$7$

$1\mathrm{.}2$ addi t$2,$ t$2,-120$

$1\mathrm{.}3$ lbu x$11,-56($x$3)$

$1\mathrm{.}4$ sw x$12,20($x$13)$

$1\mathrm{.}5$ j label$1($label$1$ is $16$ instructions away upward to this instruction$)$

$1\mathrm{.}6$ ret $($suppose that x$1=0$x$1000400$a$)$

$1\mathrm{.}7$ auipc x$10,0$xdcba$9($suppose that PC$=0$x$10005010)$