The formula for a vertex form equation is

in which (h,k) represents the vertex
Your equation is in vertex form, if you mpve the -7 to the other side you will get

because you have to add 7 to both sides
based on the equation,
h=10
k=7
(h,k)=(10,7)
your vertex is (10,7)
The coordinates of the image point are given to be B(4, -8). We are to find the coordinates of pre-image that is the coordinates before the translation.
The translation made was (x-2, y+3)
This means, the x coordinate was moved 2 units to left and y coordinate was moved 3 units above.
So, the coordinates of original point will be, 2 units to right of B and 3 units down of B.
So the coordinates will be (6, -11)
Answer:
49a^8, I hope this helps :)
For an item that cost $ 42, Mick paid $2.94 in sales tax. So percentage of sales tax is

And we have to find the sales tax that he paid for an item that cost $58, and for that , we have to find 7% of 58 , that is

So he pays a sales tax of $4.06 .