Elspeth knows that x. r=9.42cm. What would she need to do to find the circumference?

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

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.

If 25% of y is 30, what is 60% of y?