Answer:
17/4
Step-by-step explanation:
add the fractions
F(x)=3x+18
That is the awnser they I got
Answer:
The sum of the age of pupils is 81
Step-by-step explanation:
Let sum of age of 18pupils = x
Average ages = 4.5
Average = total/no. of pupil
4.5 = x/18
x = 81
Answer: D
Step-by-step explanation:
It’s really obvious just circle D
