What is 2+2+1-1+3-2+1+2+3+4+5

20

Step-by-step explanation:

2 + 2 + 1 - 1 + 3 - 2 + 1 + 2 + 3 + 4 + 5

4 + 1 - 1 + 3 - 2 + 1 + 2 + 3 + 4 + 5

5 - 1 + 3 - 2 + 1 + 2 + 3 + 4 + 5

4 + 3 - 2 + 1 + 2 + 3 + 4 + 5

7 - 2 + 1 + 2 + 3 + 4 + 5

5 + 1 + 2 + 3 + 4 + 5

6 + 2 + 3 + 4 + 5

8 + 3 + 4 + 5

11 + 4 + 5

15 + 5

20

4 puzzles in 3 hours

step-by-step explanation:

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation: