Question 1095756
the answer should be:


3.75 * k + 159.75 * j - .2 * 159.75 * j


i would have said selection B, but you have too many j's in there.


the nail guns are on sale with a 20% discount.


the price for each gun is therefore 159.75 - .2 * 159.75.


factor out the 159.75 and you get 159.75 * (1 - .2).


simplify to get 159.75 * .8.


the price of a nail gun is equal to .8 * 159.75 which is equal to 127.8


assume 20 pieces of wood and 5 nail guns.


the total cost should be 3.75 * 20 + 127.8 * 5 = 714.


my formula is 3.75 * k + 159.75 * j - .2 * 159.75 * j


that would be 3.75 * 20 + 159.75 * 5 - .2 * 159.75 * 5


evaluate that formula and you get a total of 714.


the formula i gave you is correct.


none of your selections would come up with the correct answer.


selection B would if you dropped that extra j.


selection B should be T = 3.75k + 159.75j - .2(159.75j).


or it could be T = 3.75k + 159.75j = .2j(159.75).


either one of these would be correct.