I am a number between 30 and 60 my one's digit is three less than my tens digit I'm a prime number Part 1:Gus’ friend Russ guessed that his riddle was about the number 47 why can’t 47 be the answer

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.

Which equation is equivalent to the given expression? -(1/2y+1/4) a. -1/4(1+2y) b. 1/4(2y-1) c. -2(1/4y-1/8) d. 2(1/8-1/4y)

Since we have computer algebra systems that can solve polynomial division problems for us, why is it necessary to learn how to do these things by hand?