*please answer ASAP* I really need to know if these answers are right. I have 2 other posts that I need help on if you want more points

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

Someone answer this check out the image!