<u>Given</u>:
The given expression is 
We need to determine the equivalent number.
<u>Equivalent expression:</u>
To determine the equivalent number, let us solve the expression 
Thus, let us apply the exponent rule
, we get;

Also, the term 10³ can be written as 
Thus, we get;

Dividing, we get;
0.001
Hence, the equivalent number is 0.001
Hence, Option c is the correct answer.
Answer:
Half of year 2043
Step-by-step explanation:
The function is: f(x) = 3.5√x + 38
where f(x) represents the percentage of U.S. women in the labor force x years after 1960.
Replacing f(x) = 70 and isolating x, we get:
70 = 3.5√x + 38
3.5√x = 70 - 38
√x = 32/3.5
x = 9.14²
x = 83.5
This means, in year 1960 + 83.5 = 2043.5, that is, at half of year 2043