Answer:
12 inches
Step-by-step explanation:
let length be L
formula for perimeter of rectangle = 2( length + width )
2( L + 9) = 42
2L + 18 = 42
2L = 24
L = 12 inches
Look at the tenths place when rounding to the nearest whole number. It is larger than 5 so round up. It will be 57.
Answer:
0 I think
Step-by-step explanation:
