Answer:
The posters cost $52.07.
Step-by-step explanation:
First, you have to calculate the cost of the 20 posters by multiplying the price per poster for the quantity:
$2.89*20=$57.8
Then, you have to calculate the 15% discount by multiplying the cost for 15% and subtracting that amount from the cost:
$57.8*15%=$8.67
$57.8-$8.67=$49.13
Finally, you have to calculate the 6% of $49.13 and add the result to that amount:
$49.13*6%=$2.94
$49.13+$2.94=$52.07
According to this, the answer is that the posters cost $52.07.
Answer: Third investment is the least simple interest and Second investment is the most earned simple interest.
Step-by-step explanation:
Since we have given that
Investment of $3,000 at 5% simple interest for 20 years
.
Simple interest would be

Investment of $1,000 at 16% simple interest for 20 years
Simple interest would be

Investment of $3,000 at 16% simple interest for 2 years.
Simple interest would be

Hence, Third investment is the least simple interest and Second investment is the most earned simple interest.
Answer:a) 34916 b) 411
Step-by-step explanation:
Hi there!
Let's solve this problem step by step!
The zeros of a function are the input values that produce an outcome of 0. To find this input values we must set up and solve an equation.

Set up the equation

thus

Now use the rule AB = 0 gives A = 0 or B = 0. This rule basically means that if we have a product that equals 0, at least one of the factors must be 0.
Hence, we get the following:

Finally add 8 to both sides in the right equation.

The zeros of the function are 0 and 8.
~ Hope this helps you!