sorry it can't fit the other half
10
A composite number is a positive integer. which is not prime (i.e., which has factors other than 1 and itself). The first few composite numbers (sometimes called "composites" for short) are 4, 6, 8, 9, 10, 12, 14, 15, 16, ... (OEIS A002808), whose prime decompositions are summarized in the following table.
-4c = 12
divide both sides by -4
c = -3
4/5 = you divide it so you get 0.8 which is 80%
