6.7 # 18 At what rate do you need to invest money into a bank account earning continuously compounded interest if you want to double your money in 42 months?

i believe the answer is letter c) 8

step-by-step explanation:

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.