Suppose you need to answer any four of seven essay questions on a history test. how many different question combinations are possible?

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 is the absolute value of the complex number -4-sqrt2i

Maria solved an equation as shown below. what is the solution to maria’s equation?