Prove that cot A +tan (180 + A) + tan ( 90 + A) + tan( 360 + A)=0

On a architect's drawing of a house, 1 inche representa 1.5

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form