Answer:
9 mm wide
Step-by-step explanation:
Perimeter = length x 2 + width x 2
34 mm = 16 mm + ?
34mm = 16 mm + 18 mm
18/2 = 9
p=2L+2W
34mm=(2×8)+2W
34mm=16+2W
2W=34mm-16mm
2W=18mm
W=9mm
he needs 3 bags i did this test
-6 (6) ^3 - 6
-1302
C
