Answer:
opt 4
Step-by-step explanation:
when x=0, 0+3y= -3, so y=-1 (0,-1) is solution
when x=3 , 21+3y=-3, 3y= -3-21= -24
y= -8 (3,-8) is also solution
S=D/T
34/15=2.26 mph
5.880512439 x 10^16
5.880512439 x 10^16Hope this helps!