Rachel works in the school store at Miller Middle School. The store sells notebooks, pens, pencils and healthy snack bars. Rachel wanted to estimate the percentage of the students who bought the snack bars in the school store. There are 800 students in the school. She selected a random sample of 30 students who shopped at the school store during a two-month period. She determined that 15% of those students purchased a healthy snack bar. Which statement about Rachel’s sample is true?

what is all that apply?

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

in mathematics, a constraint is a condition of an optimization problem that the solution must satisfy. there are several types of constraints—primarily equality constraints, inequality constraints, and integer constraints. the set of candidate solutions that satisfy all constraints is called the feasible set.

hoped i'm right lol