A store sells 2 dozen cookies for $7.20 find the price per cookie

30 cents

Step-by-step explanation:

2 dozen : $7.20

24 cookies : $7.20

/24                  /24      (to find unit price)

1 cookie :  30 cents

btw it sounds like your using a math book. slader.com has a bunch of math books answer keys (i wasn't told to promote the btw)

$0.3 per cookie

Step-by-step explanation:

a dozen is 12 cookies. 2*12 = 24.

7.20/24 = 0.3

so each cookie costs 0.3 dollars

2 x t divided by n

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.

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y

=

−

2

find the upper bound of the range.

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y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation: