Can someone please help me with math.

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

What is the slope of the line (-7,2) (4,6)

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000