Use function notation to represent each statement: At 1 p.m., there were 257 visitors in the museum.

V(4)=257

Step-by-step explanation:

It says that the Museum opens at 9 so it would be 4 hours. And the 257 is the number of visitors at that time

f(1) = 257

Step-by-step explanation:

x-variable: 1 (time is the independent variable)

y-variable: 257 (number of visitors is the dependent variable)

When the time is at 1 (1pm), there are 257 visitors

30.75 hours

Step-by-step explanation:

Let

x----> the number of hours worked last week

y ----> the number of hours that Juan work this week

we know that

To find out how many hours does Juan work this week, multiply the number of hours worked last week by 1.5

so

we have

x=20.5 hours

substitute