Aleading dental journal claims that 73% of young adults do not brush their teeth regularly. a dental hygienist wants to conduct a survey to verify this with her young adult patients, and wants to do so with a margin of error (me) of ± 7%. what minimum sample size, rounded to the nearest whole person, does the hygienist need to use?

a.)n ≥ 161
b.)n ≥ 200
c.) n ≥ 322
d.) n ≥ 158

Angel entered a triathlon (a three-part race). he swam 1 mile, rode his bike 30 miles, and ran 10 miles. how far did he go altogether? a. 11 miles b. 123 miles c. 41 miles d. 40 miles

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below. the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain