Markup means they sell it for that percentage more than they bought it for. First let's calculate how much they will mark it up for:

Convert 87% into a decimal(87/100):

Multiply:

This is how much they'll mark it up, now let's add it to how much they bought it for to find out the selling price:
Answer:
a)5
b)17
c) ?

Step-by-step explanation:
Answer: 9w+9
Step-by-step explanation:
First combine like terms: 6w+3w
You can't combine 9 and 9w so that would be your answer.
Then if it calls for it, use the commutitive property to move 9w before 9.
Hope this helps!
<h2>Number of bacteria after 6 days is 2313</h2>
Step-by-step explanation:
Population after n days is given by

Initial population, P₀ = 1000
Increase rate, r = 15 % = 0.15
Number of days, n = 6
Substituting

Number of bacteria after 6 days = 2313