Answer:
, or as a mixed number, 3 
Step-by-step explanation:
It helps to simplify them.
Answer: 
Step-by-step explanation:
Let "x" represents the 16% of 43 minutes.
Once you analize the information given in the exercise, you can identify that 43 minutes is the 100%.
Then, with this data, you can set up the following proportion:

Now you must solve for "x". The steps are:
- Multiply both sides of the equation by "x"

- Multiply both sides by 43:

- Divide both sides by 100:

- Rounding to the tenths place:

Answer:
x² - 5x + 4
Step-by-step explanation:
note that (p - q)(x) = p(x) - q(x), thus
p(x) - q(x)
= x² - 1 - 5(x - 1) ← distribute parenthesis by - 5
= x² - 1 - 5x + 5 ← collect like terms
= x² - 5x + 4
|= absolute value and so |-25| is 25