I don't why you put -+ but I will go ahead and assume that it is -2.
4-+6
I think it is saying 4 - positive 6 but I'm guessing.
Simple proportions.
You want a 1:5 ratio.
You have a 5:1 ratio.
So you add another 24 drops of white.
5:25 = 1:5
or
5/x = 1/5 and cross multiply.
6.0 because if it is 0-4, you round down and 5-9, round up
Answer:
$7.85
Step-by-step explanation:
2 pizzas at 11.99=23.98
4 soft drinks at 1.85=$7.40
23.98+7.40=31.38
31.38/4=7.845
Each friend pays $7.845, or $7.85 .........
