Mina opens a book 15 times and records whether the page number is even or odd. How many trials did she conduct?

She made 15 trials

Step-by-step explanation:

Well it said that she opened the book 15 times in total and records each time so the answer would be 15.

where are the images of the functions i can only see the question you typed.

step-by-step explanation:

exa:

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3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.