Found 17 5/8 to nearest whole number

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?