Answer:
C
Step-by-step explanation:
No, 243 is not a prime number, it is a composite number.
I hope I helped you again :-)
Answer:

Step-by-step explanation:
We have been given an equation
. We are asked to solve our given equation.
First of all, we will add 3 to both sides of our equation.


Now, we will divide both sides of our equation by 4.


Upon rounding our answer to nearest thousandth (3 places after decimal) we will get,

Therefore, the solution for our given equation is
.
We will use the Sine Law:

b = 5.001
Answer:
D) 5.0
The plumber worked for 5 hours because 450-200=250 which gets rid of the initial fee so 250 divided by 50 is 5