The regular price of guitar is $500 . During a sale , the guitar is priced 15 % off the regular price . If sales tax is 7 , how much will customer pay for the guitar Include the discount and the sales tax in the final cost .

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

i believe it is 0.1m because the measurement of 30.4m limits how precise you can be

you can only be as precise as the least precise measurement