Please. Find the equation for the circle with a diameter whose endpoints are (2, -4) and (1,1). Write the standard equation for the circle. (Use integers or fractions for any numbers in the equation.)

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4