I think 17.2 sorry if im wrong
It's a, because an exponent means it's multiplied by itself that many times. so 3 times 3 is 9 then times 3 again is 27. but negative exponents are always fractions and since the normal number is positive it's D (sorry at first I didn't see d and c)
Answer:

Step-by-step explanation:
The lab technician is dividing a cell that has a diameter of

The new cells has a diameter that is half of the diameter of the original cell.
The diameter of the new cell is given as:

Rewrite the numerator in standard notation:


We rewrite in scientific notation to obtain:

Answer: C
Step-by-step explanation:
thank me later
Answer: $40
Step-by-step explanation:
To find the whole number you divide the part by the percentage
so here it was 32/0.8
hope it helps