Answer:
y=5/2x+9
Step-by-step explanation:
0, 9 is the y intercept or b
6% tax means 6% of $3.50
Convert 6% to decimal (move decimal 2 spots to the left): 6% ⇒ .06
Multiply 3.50 with .06 = .21 <-- That's .21 cents of 3.50
That means you have to pay an extra 21 cents. Add that to the $3.50 you had to pay.
$3.50 + $0.21 = $3.71 <-- Price after tax
Looks good, since b c and d don't really match up answer a looks like the proper choice for you
D because if you simpify 6/8 then that will give you 3/4