Laura's coffee shop makes a blend that is a mixture of two types of coffee. type a coffee costs laura $5.50 per pound, and type b coffee costs $4.20 per pound. this month's blend used four times as many pounds of type b coffee as type a, for a total cost of $602.10. how many pounds of type a coffee were used?

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?