Answer:
-4
Step-by-step explanation:
the required slope can be calculated using the formula:

So first of all you have to change 20% into 0.20 then do 0.20 x 96 and get 19.2 or 19.20
You need to multiply 35% with the total.
35% * 1200
.35 * 1200 = 420 pieces of caramel.
6 boxes of spaghettis for 20 persons so that means 12 boxes for 40 persons since there are 50 persons we have 10 persons left since 10 is equals to 20 divided by 2, divide 6 by 2 which is equals to 3 then add 12
Answer: 15