The equation of a circle is x^2+4x+y^2−10y+13=0 .
What is the equation of the circle in standard form?

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?

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?

Find solution of the linear equation y = 2/3x + 1/3