Twenty-one students at a school have an allergy to peanuts, shellfish, or both.
 fourteen students at the school are allergic to peanuts.
 twelve students at the school are allergic to shellfish.
how many of the students are allergic to both peanuts and shellfish?
a 12
b 7
c 5
d 2

True or false? a circle could be circumscribed about the quadrilateral below.

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?

Will give let f(x)=2x and g(x)=[tex]2^{x}[/tex] graph the functions on the same coordinate plane. what are the solutions to the equation f(x)=g(x) ? enter your answers in the boxes x=[? ] or x=[? ]