Step-by-step explanation:
Both squares are 50% = 100% in total.
1 square= 50%
1/2 of a square= 25%
50+25= 75% I think i'm pretty sure that's the answer.
BBB because it has commas after the right units
The answer would look something like this:

There could also have a simplified version.
I hope this helps.
I believe the answer is 2(15t).