Hi there!
To find the percent discount, we need to divide the new price by the original price without the discount:
18 / 25 = 0.72
Now, we convert this into a percentage, so we can find the <em>percent </em>discount:
0.72 = 72%
Now, we subtract from 100%:
100% - 72% = 28%
So, the answer is 28%.
Hope this helps!
5 : 20 as a percentage equals 5/20, which is 0.25 or 25%
In order to vertically stretch a function by a factor k, we have to multiply the function expression by k.
So, in order to stretch the function by a factor of 1/5, we simply have to multiply:

So, if we shrink the function -5x by a factor of 1/5, we get the function -x.
Step-by-step explanation:
2(X-1)=16
2X-2=16
2X=16+2
X=18÷2
X=9
I don't understand (3×1)-(5=86)-10
I think it is wrong or sth I don't know!