1 3/10·b=39
(1·10+3)·b/10=39
13b/10=39
13b=39·10
13b=390|:13
<u>b=30</u>
<em>Answer: 30</em>
Answer:
He needs to get 96%
Step-by-step explanation:
Add 96 89 77 and 78 together and divide by 4, it should be 85
12/7 + 8/7
12+8 = 20
20/7 = 2 and 6/7ths
I have attached the graph. Your axis is x=-4 and the vertex is (-4,-30)
Hope that helps