-78
Step-by-step explanation:
(7-8)(78)
(-1)(78)=-78
Answer:
A,C,D
Step-by-step explanation:
Answer:
1/3
(given answers in Question are unreadable)
Step-by-step explanation:
We search for red balls (neither yellow or black). There are 6 red balls among all 18 balls. Selecting one ball, there is a chance 6/18 that we pull out a red one. 6/18 is the same as 1/3.
Answer:
When we are dividing exponents, there is this rule:

So, in our case we have this:



Actually Welcome to the concept of Radioactive decay.
So the left would be 30 grams.