the surface area of the collar is 12.3
<span>For part a,
y < x
y > -2x
</span><span>Point B: (3,1) plugin x=3, y=1 y < x 1 < 3
</span>which is true, so point B satisfies the first inequality<span>You can graph the inequality y > 2x+5 and see which schools are in the shaded region
I'm sorry but I can't do B and C
But I hope this helps!</span>
Answer: 
Step-by-step explanation:
Given: Fraction of 7th graders got A = 
Fraction of 7th graders got B = 
The fraction of the students got an A or B = Fraction of 7th graders got + Fraction of 7th graders got B

Hence, the required fraction: 
Answer:7/12
Step-by-step explanation: