9514 1404 393
Answer:
223.9 times as large
Explanation:
"Times larger" is found by dividing the diameter of Cell A by that of Cell B.
(9.85 × 10^-2)/(4.4 × 10^-4) ≈ 223.86
Cell A's diameter is about 223.9 times as large as that of Cell B.
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Additional comment
Here, we have taken "times larger" to mean "times as large".
The term "larger" in a comparison context usually indicates an additive amount. That interpretation would mean A is 222.9 times larger than B. That is, 222.9 times B's diameter, added to B's diameter, would give the diameter of A.
Your calculator can take input in scientific notation and give output in standard notation. ("Standard notation" some places is scientific notation.)