Answer:
A,B
Step-by-step explanation:
4(2x+y)
4•2x + 4•y
8x+4y
2(4x+2y)
2•4x + 2•2y
8x+4y
Answer:
Divided into five equal parts
6+9=15
y+9=x
x=30
y+9=30
y=21
In this question they've given us the formula and they just want us to plug in the numbers and get the value.
P is the original value, P=$600
r is the depreciation rate, r=10%=0.1
t is the time in years, t=2

Answer: $486
Answer:
medium
Step-by-step explanation:
The right answer is Medium, because to travel through the ear the sound wave must go through the ear drum.