Answer:
12.5
10
Step-by-step explanation:
10(1/2+3/4)
5+7.5
12.5
10(1/2)+(8(3/4)-1)
5+(6-1)
5+5
10
Answer:
Since magnesium = 2, and potassium = 1, magnesium is greater than potassium (2 > 1).
If we assign these elements letters, m and p respectively,

Hmm, I believe the answer is 80%.
It is a decrease.
30 - 6 = 24.
24/30 = 80% decrease from Wednesday.
If the pattern continues, so that each term is separated by a distance of 3, then the sequence is given by the recursive rule

From this definition, we can write
in terms of
:




and so on, up to

(notice how the subscript on <em>a</em> and coefficient on 3 add up to <em>n</em>)
or
