Last year, the 7th grade enrollment at a middle school was 150 students. This year, the enrollment increased by 120%.How many 7th grade students are there in this middle school this year?

Acompany that makes? hair-care products had 5000 people try a new shampoo. of the 5000 ? people, 35 had a mild allergic reaction. what percent of the people had a mild allergic? reaction?