The final cost of a bookstore purchase with a $5 coupon in a state that chargers 8% sales tax is given by the expression. The variable x represents the amount of the purchase before the sales tax and the coupon is applied. 1.08 ( x-5) What does ( x-5) represent ? The cost before applying the coupon The total charge before applying sales tax The rate at which the total cost increases The total charge after tax

5.37.

Step-by-step explanation:8 percent markup which in this case is 8 cents per dollar and s in nice its 5 multiply 5 by 8 and that gives you the cents part.

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.