Answer:
The answer is the last one - X= 9.9 Y= 7
Let's start with what we know:

And we are trying to put it into this form:

Here is what it would look like:

You can check you work by using the FOIL method (first, outer, inner, last)
Answer:
$8036.784
Step-by-step explanation:
It is easy
The area of carpet is 13.4×24=321.6sq meter
Now, for 1 sq. meter the cost is $24.99
So for 321.6sq.meters, 321.6×24.99
=$8036.784
To find your answer, you would find 25% of 52. To find 25% of 52, you would multiply 52x.25.
52x.25=13
Now you need to subtract 52-13. 52-13 is 39. The original amount is 39 companies.
Answer:
140 = 40 + 10x
Step-by-step explanation:
The watch is 140 in total. He can pay 40 dollars currently. 10x is the amount of payments there are. How much he can pay with each payment (10x) is unknown so that is why there is the variable.