Pl help Scientists track a flock of for three years to learn their
migratory patterns.
Is it a experiment or a Observational Study?

In a school 2/3 of the students study a language of those who study a language 2/5 study french

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

Parks is wearing several rubber bracelets one third of the bracelets are tie-dye 1/6 are blue and 1/3 of the remainder are camouflage if parks wears 2 camouflage bracelets how many bracelets does he have on