At the start of the day, there was £129.75. Later, they made more money, so the <span>£145.50. To find the amount of change, you just need to deduct the number 129.75 from 145.50.
145.50 - 129.75 = 15.75
The shop made </span><span>£15.75 in one hour.</span>
It's <span>Diophantine equation.
First, we need to found gcd(6,(-2)):</span>
6=2*3
(-2)=(-1)*2
So, gcd(6,-2)=2
Now, the question is. Can we dived c=24, by gcd(6,-2) and in the end get integer?
Yes we can.

So, we can solve it.
Now is the formula:

Second, we need the first pair (x0,y0)
if
x=0
then

Third, we gonna use that formula:

Congratulations! We solve it.
Like terms are when numbers with and without variables can be combined. ex: 4x+6-8x+=32
you would first combine 4x and -8x because they are the same.
60 hundreds means 6000 = 6 thousands;
So, 10 · x = 6000;
x = 600;
600 means 6 hundreds;
Finally, 10 times as many as 6 hundreds is 60 hundreds or 6 thousands.
15.5 x 12.4 = 192.2 so the answer is 192.2 square feet.