Which situation can be represented by the inequality? x< 90
a. kiddie pool holds under 90 l of water.
b. here are 90 children at summer camp.
c. betty is over the age of 90.
d. a refrigerator weighs more than 90 kg.

I'm being volume of cylinder with 13 in. radius and 30 in height answer choices in pic

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee, f, for a single job is a function of the number, t, of hours it takes him to complete the job. write the function's formula.