Help asap for my sister

Answer:
A: 8.4
Step-by-step explanation:
Order of operations: BEDMAS. Brackets, exponents, division, multiplication, addition, and substraction.
Using this you need to do 2(1.2) first.
2(1.2)=2.4
Then 4.5-2.4=2.1
Then finally 4(2.1)=8.4
Hope that helps
please give brainliest
Answer:
pretty sure it's 8.4 don't come at me if it's not
Step-by-step explanation:
-2(2.1) = -2.4
4(4.5-2.4) = 4(2.1)
4(2.1) = 8.4