All you need to do is replace the variables with the numbers given.
t=9 & u=11
3+ 11t - 9u
3+ 11(9)-9(11)
3+ 99 - 99
The 99's cancel each other out, so you are left with 3.
The answer is 3.
Step-by-step explanation:
amount increased to the toy = y
new price of the toy after adding markup = z
y= ( ( 25/100) × X )
therefore z= x+y
The answer is (x^4y^6+1)(^8y^12x^4y^6+1)