Oh the answer is a I looked it up this time
To get the answer we can use proportion.
30----------100%
12-----------x
Cross multiply now
30x=12*100%
30x=1200% /:30 (divide both sides by 30)
x=40% - it's the percentage of cars which finished the race.
100%-40%=60% - it's the answer
The same thing to the other side
2(b+3) = 2
2b + 6 = 2 ( -6 )
2b = -4 ( / 2)
b = -2
Answer:the 1st one is N=17
THE SECOND ONE IS X=35
Step-by-step explanation:
hope this helps
