Which line of code will find the first occurrence of a three in an array? Assume that you have previously imported the array module and created the array.

arr. index(3)
index(arr, 3)
arr. index[3]
index[arr,3]

Which is produced by the endocrine system to control how cells and organs function

How to launch an app: steps to be successful? launching an app is a great idea, but it’s not that easy as we supposed to think. the majority of mobile applications don’t generate revenue because companies aren’t ready to be competitive. referring to our experience in successfully building and launching apps we hope to you omit these difficulties. we are going to talk about ideas, marketing, testing your product, its development, distribution and support. you will learn 8 product launch stages to succeed.

When is a chart legend used a. all the time b. whenever you are comparing data that is the same c. whenever you are comparing multiple sets of data d. only for hand-drawn charts