(50 points! ) jessica purchased a dvd that was on sale for 12% off. the sales tax in her county is 3%. let y represent the original price of the dvd. write an expression that can be used to determine the final cost of the dvd.

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.