Amy wants to have her birthday party at the movies. It costs $57 for pizza and
$10.50 per friend for the movie tickets. Since it is Amy's birthday, she does not have to pay
for a ticket. Write an equation to represent how many friends can Amy have at her birthday
party if she has $278 to spend.

26

10.50 multiply by 26 =273

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: