Answer:
<h3>

</h3>
Step-by-step explanation:

Use the distributive property to multiply each term of the first binomial by each term of the second binomial.
⇒
⇒
Collect like terms
⇒
Hope I helped!
Best regards!!
Answer:
A
Step-by-step explanation:
Any number that have the | | symbol will automatically be positive
For example
| -5.8 | = 5.8
Answer:
I'm too tired to explain, here's some digital work on a site called Symbolab:
Answer:
14
Step-by-step explanation:
We are given with two
numbers whose first
are same.
It is given that their sum is 
adding the last two corresponding digits gives,

Now adding the rest,
to get 
should not give anything to carry as that will make A in decimal to satisfy the addition.
Therefore,

Thus 
And finally,

Thus 
Now simplifying

Thus
is the answer.
30% of £10 = £3
30% discount = £10 - £3 = £7
Cake costs £7