Answer:
18
Step-by-step explanation:
Mark is 18 years old.
No, it does not equal 0. Lets multiply it out and see what it actually equals.
15/25 * 25/15
15*25 / 25*15
375 / 375
Anything over itself is 1, so the final answer for the multiplication is 1.
Answer:
4x^2 + x
Step-by-step explanation:
just multiply x to each of the terms.
