Answer:
b=5
Step-by-step explanation:
2+b=7
Subtract 2 from each side
2+b-2=7-2
b= 5
12. 4(s+5)
4s+20
15. 2(3r-12)
6r-24
18. -3(16-3d)
9d-48
31 out of 50 is
62%Divide 31 over 50:

Multiply 0.62 and 100. This will convert the decimal to a percentage:
Answer:
To find the mode, order the numbers lowest to highest and see which number appears the most often.
Step-by-step explanation:
Answer:
There isn't a specific answer in my knowledge but the answer that's matches with most of them is 149