Directions Add the five numbers. Then use the middle picture to do the calculation in fewer
steps. Explain your thinking.
Use the picture on the right to show another way to do the calculation.
Draw pictures like these for 1+2+3+4 +5 + 6. Do the calculations again.
Use the middle and right pictures to create two formulas for 1+2+3+...+k.
Prove that the expressions in your formulas are equivalent.
.
.

the answer is a

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:

30005

yes ok                                            

answer:   x*94 +688*6   = 267*100

94x+4128=26700    

94x=22572     /94

x=240.128

step-by-step explanation: mark as brainlest reallly need it thx