Reflect (4, -5) over the X-axis. Where does it end up?

(x,-y) so it need x Asia so we will switch the sign of y
It will be (4,5) and then draw the coordinations before and after the reflection .

If cheese is $4.40 per kilogram, you should pay .88

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.