Answer:
Step by step explanation:help
A=LW, we are told that the dimensions are 42 and 48 so:
A=42*48
A=2016in^2
2r + 2r + 5 + r + 4r - 3 = 38
9r + 5 - 3 = 38
9r + 2 = 38
9r = 38 - 2
9r = 36
9r/9 = 36/9
r = 4cm
Done!
no clue, man. sorry. i really wish i understood it so i could help you
