A new top-selling DVD is marked 20% off at Discount DVD, where it normally sells for $29.90. The same disc sells for $28.60 at Value Video, where you have a coupon for 15% off anything in the store. Where would you buy the DVD? Explain how you decided and be sure to include work to support your answer.

You would buy the DVD at Discount DVD.

Step-by-step explanation:

To decide where to buy the DVD, you have to determine the price at each store after the discount is applied.

-Discount DVD: $29.90*0.2=$5.98

$29.90-$5.98=$23.92

-Value Video: $28.60*0.15=$4.29

$28.60-$4.29=$24.31

According to this, you would buy the DVD at Discount DVD because it is where you will get the lower price.

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

45.3592

step-by-step explanation: