Answer:
24
Step-by-step explanation:
from the question above,
30+(-6) =
when plus is multiplying minus it's minus
+ × - = -
30-6 = 24
(a).16.8 litres
(b).red-1.2 litres
white-14.3 litres
Area= 525
14x9=126
3x7=21
14x27=378
126+21+378=525
