You want an MP3 player that costs $129. If sales tax is 7%, what will be your total, t? Write an equation.

Answer 1

If you add 7% to the total, you now have 107% of the price. My algebra teacher taught me that the % is like the crooked eyes of sn angry monster, so you want to run away from it (always 2 decimal places). If it's gone, it's safe to go that direction.

6.25 = 625%

0.625% = 0.00625

Crazy, huh?

t = 129(1.07)

t = you tell me

Answer 2

Total = (1+tax)* Price

T = 1.07*129