For each case find the answer:

$($a$)$ If q$($t$)=2$t$^(2)+6$t$+3$ Coulombs FIND i$($t$)$ at t$=4$ seconds

$($b$)$ If i$($t$)=4$ Amperes FIND q$($t$)$ for t seconds

$($c$)$ If w$($t$)=5$t$^(3)$ Joules FIND p$($t$)$ at t$=3$ seconds

$($d$)$ If p$($t$)=2$t$^(3)+3$t$+4$ Watts FIND w$($t$)$ for t seconds