Help me with this ixl please

Which equation represents a circle with a center at (–3, –5) and a radius of 6 units? (x – 3)2 + (y – 5)2 = 6 (x – 3)2 + (y – 5)2 = 36 (x + 3)2 + (y + 5)2 = 6 (x + 3)2 + (y + 5)2 = 36

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

Is there an x intercept in the equation 60*1.15^x