Answer:
10
Step-by-step explanation:
substitute the value
multiply
subtract
Functions are basically another way of expressing a way to get y or x or anything (mostly used for graphs) You will see functions like <em>f(x)=</em> <em>23y-5 </em>(that was made up). Basically the number in the parenthesis in front of the f is what you're finding. So the equation after the equal sign is how to find whatever is being found. So in this case, finding x can be pretty easy. By the way, when graphing this you have x as the run and y as the rise. <em />
Answer: No, as the total cost of the 3 shirts w/ sales tax is $45.36 and she only has $45.
Step-by-step explanation:
Start by finding the price of one shirt on sale.

This equals 3.6 which is how much will be deducted from the original price.
One shirt costs
when its 20% off.
This is equal to $14.40.
Since she wants to buy 3 of them we just multiply the $14.40 by 3.

This equals $43.2 but this is without a 5% sales tax which is normally added to the total end price.
To add a sales tax you take the sales tax percent plus 1 and multiply it to the $43.2.

This means the total price of Kayla's purchase will be $45.36.
This is over her $45 she has so she can not buy it.
Laptop's sale tax
=6/100 x 650
=39
Power adapter's sale tax
=6/100 x 59
=3.54
Total Sales tax=
39+3.54
=42.54
I hope this helps you
y=x^2-10x+35
y=x^2-10x+25+10
y-10=(x-5)^2
y=(x-5)^2+10
h= -(-5)=5
k =10