What is the final price of a $24 sweatshirt if there is a 20% discount applied and then a 7% sales tax added
a.$22.26
b.$19.20
c.$25.68
d.$20.54

Given :Price of sweatshirt is $24.

Discount is 20%

Discount given of shirt is 20% of $24=.20(24)=4.8

Discounted price of shirt = 24-4.8= 19.2

Sales tax of 7% is added to the discounted price.

Sales tax on the discounted price is 7% of $19.2 =.07(19.2)=1.344

final Price of sweat shirt= discounted price + sales tax =19.2+1.344=20.54

Option D.$20.54 is the right answer.

take it another

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this