2x+7+12y+1=180 and
2x+7=3x-7
x+6y=86 and
x=14
so x+6y=86 is 14+6y=86
6y=72
y=12
answer: x=14 and y=12
$5 for reg
$10 for mid
$15-$20 for loud
8j-32=8j-32
J=j
Js value is infinite
Yes, because there is a corresponding amount of teachers per student.
Answer:
Step-by-step explanation:
s(1-30/100)=420
s(100-30)/100=420
s(70/100)=420
s(7/10)=420
7s=4200
s=600
