Mr. Novotny claims that 20% of students have at least two cell phones: one phone that works, and one broken
phone they use as a decoy for when teachers ask them
to hand in their phone because they are spending all of
their class time looking at it instead of learning. Mr.
Novotny takes a random sample of 500 students and
finds that 88 have two or more cell phones. At a = 0.05,
test Mr. Novotny's claim.
Write the appropriate set of hypothesis for the significance test.

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.