A sixth grader weighs 90 pounds, which is 120% of what he weighed in fourth grade. How much did he weigh in fourth grade?

In the pendulum formula t=2pi. read the problem on the picture ! ; $; $; ! ; ! ; ! ; )$; ! ; ! ; ! ; $; $; $! ; ! ; ); $; $$

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles