Jeanette purchase a concert ticket on a website the original price of the ticket was $75 she used a coupon code to receive 20% discount the website applied a 10% service fee to the discounted price jeanette stick it was less than the original price by what percent

10%

Step-by-step explanation:

20%=20/100=0.20

 75$x.0.20=15$

 The price when she received a 20% discount was:

 75$-15$=60$

 Then, the web site applied a 10% service fee to the discounted price, so you have:

 10/100=0.10

 75$x0.10=7.5$

 60$+7.5$=67.5$

 So, if 75$ is the 100% of the price, what percentage represents 67.5$?

 75$100%

 67.5$x

 x=67.5 x 100/75

 x=90%

 Then,

 100%-90%=10%

step-by-step explanation:

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form