Rachel bought $12.53 worth of school supplies. she still needs to buy pens, which are $2.49 per pack. she has a total of $20.00 to spend on school supplies. how many packs of pens can she buy?

3

Step-by-step explanation:

20-12.53=7.47

7.47/2.49=3

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:

answer: sorry i can't you.

step-by-step explanation: