At tanika's school, 3 people are chosen in the first round. each of those people chooses 3 people in the second round, and so on. how many people are chosen in the sixth round?

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.

What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?