Answer:
D
If you put the equation into a calculator, it will show a graph of it.
A
Subtract 32 from both sides first, then divide both sides by 9/5
Use the pic and solve the COS x-sin x/COS x+ sin x part
comment if there's something u don't understand
3 ft is equal to 36 inches, so they are the same length
Try this suggested example.
PS. the 1st step is marked with red, the 2d step - with green, the 3d step - with blue colours, then the final step is marked with orange.