Answer:
15r
Step-by-step explanation:
You could easily change the 2 1/2 to a 2.5 and do 2.5-6=-3.5
1/5(25-5a)=4-a
⇔5-a=4-a
<span>NO SOLUTION</span>
Recall that

where
is the angle between the vectors
whose magnitudes are
, respectively.
We have


Answer: 238$
Step-by-step explanation: 7 x 17 = 119 mutiply this x 2.00 = 238