Percents! Please answer!!

In the rectangle below ac=30 units what is de

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

Francis is getting new carpet tiles in his living room and den. his living room and den are connected. he needs to figure out how much carpet he needs and the cost involved. if each tile costs $2.00 per sq ft, how much would it cost to have new tile put in the den? a) $24 b) $36 c) $48 d) $54 plz awnser soon