Answer:
Its C
Step-by-step explanation:
Just took the test and found out it's not infact 5, but it's 25
Answer:
2.8
Step-by-step explanation:
using cosine rule
= 
s =
= 2.842 = 2.8
Your answer, in your set notation, is
{-2, 7}
3 boxes of computer diskettes at $8.99 per box = (3 * 8.99 = 26.97 )
2 packages of pens at $ 2.50 per package = (2 * 2.50 = 5.00 )
6 boxes of paper at $ 22.95 per box = (6 * 22.95 = 137.70)
1 printer ribbon at $25 each. = (1 * 25 = 25)
Add up (26.97+5.00+137.70+25 ) and the answer is = 194.67