I don't have time to calculate I have to go somewhere. HELP ASAP! What is x+300=500

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

1. what expression would be the same as 6x+x+0 2. find the prime factorization of 60 3. write the expression for 6 + x in words.

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.