Answer:
$22.50
Step-by-step explanation:
$4.50x5=$22.50
Answer:
8x+6y=48
x+y=7
multiply bottom equation by 6:
8x+6y=48
6x+6y=42
subtract equations:
2x=6
divide 6 by 2:
x=3
therefore:
y=4
Answer:
12
Step-by-step explanation:
20% of 60
= 0.20 x 60
= 12 percussionists