Ex 1:
2/5 x 4/5
Multiply both the numerators together and then multiply both the denominators together. You would multiply 2x4 which is 8 and 5x5 which is 25. Which leaves you with 8/25 and it will stay that way because you cannot simplify it further.
Ex 2:
2/5 and 5/3
Multiply across 2x5/5x3 and you end up with 10/15 which can be simplified/reduced to 2/3 because they share a common factor of 5.
The trip there is 58.5$ and the trip back is 63$. 63-58.5= 4.50. Which makes the answer B
we are given to simplify

Open the bracket and write the like terms together

when the bases are same then the exponents gets added
