I’m not really sure about the answer but I’m doing the same think n this should help sorry ♀️
Answer:
it is B
Step-by-step explanation:
i just did it
3.5 kg:800g
3500g:800g
35g:8g
Step 1. Simplify
7x^2 - 8x - 4 - 2x^2 + 3x + 5 + 5x^2 - 10x - 8
Step 2. Collect like terms
(7x^2 - 2x^2 + 5x^2) + (-8x + 3x - 10x) + (-4 + 5 - 8)
Step 3. Simplify
10x^2 - 15x - 7
Answer:
-2
Step-by-step explanation: