(-7i + 3)(8 + 5i) i need help

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

The equation of a circle is (x + 4)2 + (y + 6)2 = 16. determine the length of the radius. 10 4 16 8 my flower basket delivers flowers within a 20 mile radius of their store. if this area is represented graphically, with my flower basket located at (5, 2), what is the equation that represents the delivery area? (x - 2)2 + (y - 5)2 = 20 (x - 5)2 + (y - 2)2 = 20 (x + 5)2 + (y + 2)2 = 400 (x - 5)2 + (y - 2)2 = 400

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two