Answer:
b = 43
Step-by-step explanation:
So let's plug things in first:
y= 2x - 20 and y= -5x +b which can become →
2x - 20 = -5x + b (now you said that x=9 so let's plug that in)
2(9) -20 = -5(9) + b (now try solving that)
18 -20 = -45 + b → -2 = -45 + b ( so then add 45 to both sides)
43 = b ( and there's your answer )
Answer: 
Step-by-step explanation:
Complete question is provided in the attachment below.
Given: Jacob and Issac decided to run to the basketball court
Distance between basketball court and school =
miles
miles
Speed =
miles per hour
miles per hour
Since, time = (distance) ÷ ( speed)
Now, the time taken by boys to arrive at the basketball court =
hours

Hence, the required length of time = 
1/3 mile x 9 times = 3
They both are 9/3 simplifies to 3
Answer:m=134
Step-by-step explanation:
that's the only correct answer
Percent means literally per one-hundred...
p/100=28/32
p=100(28)/32
p=87.5%