Answer:
8,436,300 cm
Step-by-step explanation:
279 × 7 ≈ 2800
if you have to round to the tens place, then both would be rounded up, the 7 to 10 and the 279 to 280. 10 × 280 = 2800
120÷1
it would be 120 milla secounds
I think it would be c
