Answer:
-28
Step-by-step explanation:
multiply both 9 and 16 by 4 and then subtract the sum of 16 × 4 from 9 × 4.
2l + 2w = 16
2(l + w) = 16
l + w = 8
Lengths could be any numbers greater than 0 and less than 8
0 < l < 8
102
the angles are alternate so they add up to 180
180-78=102
hope this helps :)
if you need me to explain more just let me know :)
