Can anyone help me with this "Who am I?" for math transformations?

The tangent of an angle is not which of the following? a) ratiob) proportionc) fractiond) opposite over adjacent

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

Mr. and mrs. wallace have decided to buy a car for $21,600. they finance $15,000 of it with a 5-year auto loan at 2.9% arp. what will be their monthly payment be? a. $268.20 b. $268.86 c. $269.54 d. $387.16 i need !