You are looking for something "if A, then B" equals "if B, then A".
The only one that satisfy the above is B.
Since it is 2 shirts
15 times 2 = 30
30% of off 30 dollars is 21 dollars
7% tax increase will come to 22.47
The total cost should be $22.47
No i don't even think albert could
Yes, it is a function, because for any given number x as argument there is one and only one function value equal x^2 - 5.
