Answer:
$6.85
Step-by-step explanation:
He bought breakfast for a total of $3.60 and lunch for $10.45. All you need to do next is subtract breakfast from lunch to get $6.85.
y=4x/3+9/3
slop is 4x/3
and the point is 3,6
so y-6 = 4x/3(x-3)
sove the you will have y=4x/3+9/3
sample mean
2 and 4 I am pretty sure. hopeful that's correct.