Answer:By multiplying with (1+0.01x) where x is the percentage of increase, monthly pay rate of 21$ after marked up 78.7% and 10% profit will be $41.28.
Step-by-step explanation:
Given that pay rate is 21$ and it is marked up by 78.7% and made a 10% profit.
If any value marked up or made a profit of x% then we have to multiply with (1+0.01x) to find the new value.
New pay after 78.7% marked up using above formula is 
Now we have to use above formula again for 10% profit.
Hence new value
≈$41.28
8 people are in line for the carousel for a 1 minute wait time
Answer:


Step-by-step explanation:
The equation
is factorable using GCF and difference of squares.
First, we factor 3a from each term.

The term in the parenthesis
has the form
which factors into two terms where a and b are the squares root of their respective terms.
