Answer:
-1.9b + 7.8
Step-by-step explanation:
1.3b - 3.2b = -1.9b
Add that with 7.8 and you get -1.9b + 7.8
1 square unit
its easy
1 * 1 = 1
56.6m to 1.d.p
circumference=2πr
=2×3.142×9
=56.556m
=56.6m to 1.d.p
The answer is C
Hope this helps.
where's the question?
