Round the answer to the nearest cent. 5 1/2% tax on $20 is $

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.

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2