Lucy collects data from a random sample of seventh-graders. Out of 40 respondents, 7 attend afterschool programs. Of the 200 seventh-graders attending Lucy’s school, how many would be expected to attend afterschool programs? PLEASE HELP ASAP
WILL GIVE BRANLIEST :)

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

About 9% of th population is hopelessly romantic. if 2 people are randomly selected from the population, what is the probability that at least 1 person is hopelessly romantic?