F(x)=1456x^2-4x^6+1160x^3+52x^4-40x ^5-6400-4000x f(x)=1456x 2 −4x 6 +1160x 3 +52x 4 −40x 5 −6400−4000x

Question 5 spring semester final exam math evaluate

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.