Step-by-step explanation:
F respiratory system only remove carbon dioxide from the body
3/3 = 1
4/4 = 1
1 × 1 = 1
3/3 × 4/4 = 1
2.5 × 10 ↑ -1
Because it moves the decimal place one spot over to the left (because the one is negative), making it 0.25 once again.
Equation a and equation c
100,000,000+70,000,000+6,000,000+ 900,000+40,000+5,000+500+90+6= 176,945,596
I hope this helped
