Answer:
7
Step-by-step explanation:
12b -b = 11b
11b = 77
Divide both sides by 11
b = 7
<span>Sixty-two thousand, one hundred thirty-seven.
</span>
After 3 years the computer will be valued at 3711.5. I'm sure you can round it up to 3712.
Hope this helps :)
Answer:
2×10¹² cells → 90 g
mass of 1 red blood cell : 90÷(2×10¹²) = 45×10^-12 g = 4.5×10^-11 g
