What is the value of x? x=2.24 x=11.25 x=13 x=22

The vector matrix [2/7] is dilated by a favor of 1.5 and then reflected across the x axis. if the resulting matrix is [a/b] then a= and b=

What is the reflection image of (5,-3) across the line y = -x?

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9