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:
The above equation has two solution !
x = 0 , x = 1
Step-by-step explanation:
[ Refer to the attachment ]
Answer:

Step-by-step explanation:
We want to find an expression that is equivalent to
.
Since we can;t get the options, we simplify the given expression.
The reason is that, the given expression will be equivalent to the simplified one.
We combine similar terms to get:

We now expand to get:

We perform the subtraction of the last two terms to get:

We now multiply to get:

Answer:
3/10
Step-by-step explanation:
8 blue marbles and 12 yellow marbles. = 20 marbles
P( yellow) = yellow/total =12/20 =3/5
P(plastic) =1/2
P(yellow, plastic) = 3/5 * 1/2 = 3/10