Answer:
C
Step-by-step explanation:
Multiples of 4: 4,8,16,20,24,28,32,36,40,44,48,52,56,60
Multiples of 15: 15,30,45,60
Th smallest number that they both can multiply to is 60
Answer: 
Concept:
Here, we need to know the power of imaginary numbers
i = √(-1)
i² = -1
i³ = -i
i⁴ = 1
Solve:
<u>Given function expression</u>

<u>Given the requirement of the question</u>
To find the expression for f(i)
<u>Substitute values into the expression</u>

<u>Simplify the exponents</u>

<u>Expand the parenthesis</u>


Hope this helps!! :)
Please let me know if you have any questions
Answer:
233.33 mg
Step-by-step explanation:
9x = 2100
---> x = 2100/9
---> x = 233.33 mg
52 is the answer I believe