Marge runs an ice cream parlor. her specialty is triple chocolate sundaes. she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes. if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours, which function relates her earnings to the number of minutes she works?

Step-by-step explanation:

Suppose she earns f(x) dollar by making sundaes in x minutes.

As per statement,

She just makes sundaes for a single shift of at most 4 hours and at least 2 hours,

⇒ She can make sundaes for a single shift of at most 240 minutes and at least 120 minutes,    ( 1 hour = 60 minutes )

That is, 120 ≤ x ≤ 240

Now, She can prepare 1 sundae every 2 minutes,

Thus, for her,

2 minutes = 1 sundae

⇒ 1 minute = 1/2 sundae

⇒ She can prepare x/2 sundae every x minutes,

Also, she earns $1.20 for each sundae she makes.

Thus, her total earning in x minutes,

Which is the required function that relates her earnings to the number of minutes she works.

answer: i don't understand. what are the options

step-by-step explanation:

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.