ANSWER
Option B
and
Option D.
EXPLANATION
The graph of the function has an amplitude of 2 and a period of

Choose all the equation that has an amplitude of 2 and a period of

These are:

and

The second and the last options are correct.
The inequality that can be used to determine x is 
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<h3>How to generate the inequality</h3>
<u>Given data</u>
Rental company charge per day = $31.91
Rental company charge per mile driven = $0.07
Hudson plans to drive 100 miles
Hudson has at most $70
solution
let x represent he maximum number of days Hudson can afford to rent while staying on budget. cost of number of days is:
$31.91 * x= 31.91x
As Hudson plans to ride 100 miles; cost is:
100 * 0.07 = $7
therefore number of days plus 100 miles ride is:
31.91x + 7
with a limit of less than or equal to the budget we have:

The inequality above could be used to determine x
Read more on inequality here: brainly.com/question/11613554
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Answer:
6
Step-by-step explanation:
5/6 of 30 = ?
5 x
---- = ----
6 36
36 x 5 = 180
180/6 = 30
That means 30 singers are boys.
36 - 30 = 6 (the number of girls)
Answer:
umm what
Step-by-step explanation: