Answer: 
Step-by-step explanation:
(3x^2+x-1)(x^4-2x+1)
=3x^6-6x^3+3x^2+x^5-2x^2+x-x^4+2x-1
=3x^6+x^5-x^4-6x^3+x^2+3x-1
Hope this helps!! :)
Please let me know if you have any question
Answer:
124.5
Step-by-step explanation:
All you need to do is multiply.
15*8.3=124.5
This is because The total water in Ari's fish tank has 15 gallons, and each gallon has 8.3, so you multiply.
Answer:
$997
Step-by-step explanation:
Okay, so the first thing you need to do is find how much commission Luis received so that we can add that to the base salary. To do that, we could set up a proportion.
Since percentages are out of 100, we'll need to put 14 over 100. Because $6050 is the total amount he sold, we'll put that number in the denominator corresponding to the total, or 100. The proportion will look somewhat like the following:

To find X, we have to multiply across (14 × 6050, which is 84700) then divide that by 100 (or the denominator right on the other side), which would result in 847.
So... X = $847. Now we add that to the base salary (150 + 847), and that gets us $997 for the total he was paid last week.
I apologize for taking so long to help ^-^;
Answer:
100-16x
Step-by-step explanation:
-10(-10+7x)-6(-9x)
apply rule -(-a)=a:
-10(-10+7x) +6x9x
Multiply 6 x 9:
-10(-10 + 7x)+54x
Distribute:
100-70x+54
combine like terms:
100-16x
f(x) = 
note the range is {1, 5, 25, 125 } which can be expressed as
{
,
,
,
}
the exponents being the domain { 0, 1, 2, 3 }
thus f(x) =
an exponential function