Add all her phone bills = 115+43+67+95 =320, divide by how many numbers there are, so 4, 320 divided by 4 = 80
Answer: z^2-4
Explanation: z•z and 2^2=4
z^2-4
Use the expression to solve for the number.
2n + 4 = 22
2n = 22 - 4
2n = 18
n = 18/2
n = 9
The number is 9.
Hope this helps :)
Answer:
<em>Domain:</em> -3 < x <2
<em>Range:</em> -4 < y < 5
<em>Is the graph a function?</em> No the graph isn't not, since the graph fails the <em>vertical line test</em>
