Answer:
Law of Cosines
In trigonometry, the law of cosines relates the lengths of the sides of a triangle to the cosine of one of its angles
4 is the answer you need
Step-by-step explanation:
the second solution . 3/18 = 6/DG
Why not
the second because 9.95p and p represents the word (can) therefore can buy the same with 7.15p in total would be 17 <60 so p <5
