12/5 - 3/10 = 24-3 /10 = 21/10
OR 2.1 in decimal form
Answer:
B is the better detergent
Step-by-step explanation:
If A has a lower number on the 1-10 scale, that means on average it was closer to the lower end, or the least clean end. This means that A cleans worse than B., and B is better.
Answer:
30
Step-by-step explanation:
i would think 30 different combinations, but tbh i have no idea