Fx=3x
Because f times x equals fx which could be equal to x+1 which is 1x plus 2 which is 3x leaving a product of fx=3x
simplify : the exact value of sin 240
Explanation: sin(240)=sin(60+180)=-sin60

Final answer: the required vaalue of the sin 240 is -0.87
Answer:
26 I think
Step-by-step explanation:
i don't really know but I think it's 26
Answer:
It is 23
Step-by-step explanation:
BC= FE
(x-4)=19
Therefore x= 23
Answer:
The error is: The solution shows the Sam's age and the problem asked for Micaela's age.
Solution fixed: 
Micaela is 17 years old now.
Step-by-step explanation:
The error is: The solution shows the Sam's age and the problem asked for Micaela's age.
To fix the error, you can set up these equations based on the information given:
Solve for "s" from the first equation:

Substitute this equation into the second equation:
Now you need to solve for "m":

Micaela is 17 years old now.