Pls help I need help I need good grades

For number 3: in 2001 around 25 kids have there hair colored because the dot on the graph is close to 20 and 30.  

For number 5: Around 100 because the graph seems to be decreasing.

Step-by-step explanation:

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

tap for more

y

=

−

2

find the upper bound of the range.

tap for more

y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation:

middle maybe?

step-by-step explanation: