What are the positive and negative intervals for f(x)=7-3x ??

Customers at an ice-cream shop took a survey .the results showed that 144 customers rated the shop as being "very satisfactory ."this number represented 45%of the total nunber of customers who took the survey

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

Let event a = you roll an even number on the first cube.let event b = you roll a 6 on the second cube.are the events independent or dependent? why?