One acre is equal to 4840 square yards. Jamal's backyard is 121 yards long and 40 yards wide. How big is Jamal's backyard in acres?

If 20% of a number is 35, what is 50% of that number?

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

If you answer 2+2 you will get over 80 points