I wanna say the 1st or the last one
Answer:
(c) 31.2-60
Step-by-step explanation:
Given that
60 – 31.2 + ? = 0

This is the same as the expression in option (c) 31.2-60.
Hence, option (c) is correct.
Answer:
Solution given:

now
f(x)+g(x)=
....(1)
now
factoring x²+6x-40
we get
x²+10x-4x-40
x(x+10)-4(x+10)
(x+10)(x-4)
now substituting in equation 1 ,we get
f(x)+g(x)=
taking l.c.m
=
=now
opening bracket

=
So
answer is :
B. 
Answer:
Step-by-step explanation:
4/3 cannot be simplified further
6/8 can be simplified by diving the numerator and denominator by 2=3/4
4/3 is not equal to 3/4
Therefore they are not equivalent