Answer:
$36000
Step-by-step explanation:
We have a mean price of $4500 this means that in the 8 cars we have cars with higer and lower prices than $4500 but that if we have to give the same price to 8 cars that would be $4500. Then to know the total price of the all 8 cars we just have to multiply:

Answer:
2
Step-by-step explanation:
Answer:
x = 15 , y = 105 ,z= 105
Step-by-step explanation:
i dont think you need explanation for all this
Answer: a = -15
Step-by-step explanation:
3a + b = 9
b=54
3a + 54 = 9
3a = 9-54
3a= -45
<h3>

</h3>
- x + = -
<h2>a= -15</h2>
1.) 5
2.) 9
3.) 1/2
4.) 0.5
5.) 1
6.) -8