find the points on the given curve where the tangent line is horizontal or vertical. (assume 0 ≤ ������ < ������. enter your answers as a comma-separated list of ordered pairs.) r = 9 cos(������)

If your annual gross income is $62,000 and you have one monthly car payment of $335 and a monthly student loan payment of $225, what is the maximum house payment you can afford. consider a standard 28% front-end ratio and a 36% back-end ratio. also, to complete your calculation, the annual property tax will be $3,600 and the annual homeowner's premium will be $360.

Can someone answer this question? : )

Need on this one asap im almost done with this subject