Respuesta :

750 * .3 = 225

750 - 225 = 525

525 * .07 = 36.75

525 + 36.75 = 561.75
DISCOUNT
To find 30% off 750  you can multiply 750 by 0.3 or you can find that 10% of 750 which is 75 and multiplying it by 3.  75 x3 =225  

Subtract the discount from the original cost.  $750-$225= $525.

TAX
Find tax on $525.
1% of 525 is 5.25  so 7% will be 7 x 5.25 = 35 + 1.75= 36.75

TOTAL COST
$525 + $36.75 = $561.75