Suppose that four times the square of a number equals 20 times that number. What is the number?

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 np3 /nc2 = 6, find the value of n

Im so bad at fractions they are not my best math thing to work on