Answer:
(x) = 
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = 5x + 4 ( subtract 4 from both sides )
y - 4 = 5x ( divide both sides by 5 )
= x
change x to
(x) and y back to x, thus
(x) = 
Answer:

Step-by-step explanation:
You are making rusks and have to dry them overnight at a temperature of 176° F.
The given temperature is in Fahrenheit. We need to convert it into °C.
The relation between Fahrenheit and °C is given by :

Put F = 176
So,

So, the temperature is equal to
.
Its 5 because it sas to count faces there are 5 faces on a cube
The data are bunched towards the higher values above the mean, but spread out to values below the mean. Therefore the median provides a better description of the center.