50 points !
a coin is flipped 70 times and lands on tails 42 times. what is the relative frequency of the coin landing on tails?
a.30%
b.40%
c.50%
d.60%

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

Ateacher asked his students to vote for an animal to be their class pet. five-eighteenths of the students voted for a rabbit, voted for a snake, and voted for a hamster. which statement is true? more students voted for a hamster than a snake. more students voted for a snake than a rabbit. more students voted for a rabbit than a hamster. more students voted for a snake than a hamster.

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?