6 3/4 I think is a possible answer
Answer:
line 2 of her working
Step-by-step explanation:
when multiplying the brackets out it is a negative times posative so she should have wrote -4 not +4
Answer:
5 hours
Step-by-step explanation:
227.5+97.5=325
325/65=5
Answer:
da answer iz two cause wen u add one plus one u get answer two
Step-by-step explanation:
let mi hope dat it useful
Answer:
a difference of squares
Step-by-step explanation:
Let's write down the expression:

we can see that this expression is one of the form
which is the general expression of a difference of squares.
To be more specific and to see why we say this, let's make
and 
Now, if we substitute this in the general formula, we get:

Thus, this expression is a difference of squares.