Money earned: 8*4 = $32
Tips needed: 100-32 = $68
If he keeps 90%, the total money he needs to earn in tips is (10/9)*68 = $75.55
The answer is A. If you divide 3/8 which equals .375. Then you multiply .375 by 6 to get 2.25!
:D Hope this helps!
I think it’s (-5,4) i hope this helps!