Answer:
is sometimes positive and sometimes negative.
Step-by-step explanation:

Take 

Take 

Hence
for
and
for 
So
is sometimes positive and sometimes negative in the interval.
Answer:
75%
Step-by-step explanation:
If y = 2/3 , we simply plug it in the equation.
2/3 x 6 =
Convert 6 into a fraction.
6/1
2/3 x 6/1 = 12/3 = 4
Answer: 4
Answer:
$18
Step-by-step explanation:
15 x 15% = 2.25 This is the tip.
15 x 5% = 0.75 This is the tax amount.
ADD THEM ALL UP:
2.25 + 0.75 + 15 = $18
<h3><u>
<em>Hope this helps!!! </em></u></h3><h3><u>
<em>: )</em></u></h3>
Answer:
2.5
Step-by-step explanation: