C) (esther?) The orbal velocity is constant.
If it weren't constant, we wouldn't be revolving around the sun at all times, would we? :)
Answer:
C Not a mandatory instruction
Step-by-step explanation:
Everyone got a calculator.....each weighed 16 oz.......gave them to 20 students.....20 * 16 = 320 total oz
16 oz = 1 lb
320/16 = 20 lbs <==
or, if u just think about it...u gave 16 oz to each student.....16 oz = 1 lb...so u gave 1 lb to each student....20 students = 20 lbs
5:3....added = 8
5/8(144) = 720/8 = 90 adults
3/8(144) = 432/8 = 54 children