Answer
2/3+5/6= is 1.5
Step-by-step explanation:
first do 2/3=0.66666666666
and 5/6=0.83333333333
then do 0.66666666666+0.83333333333=1.5
The slope of BC is 
Step-by-step explanation:
Let us revise some notes about slopes of lines
- If two lines are parallel, then their slopes are equal
- If to lines are perpendicular, then the product of their slopes is -1, that means if the slope of one is m, then the slope of the other is

∵ ABCD is a rectangle
∵ AB // CD
∴ The slope of AB = the slope of CD
∵ BC ⊥ AB
∴ The slope of BC × the slope of AB = -1
∵ The slope of AB = 
- To find the slope of BC reciprocal the slope of AB and reverse its sign
∴ The slope of BC = 
The slope of BC is 
Learn more:
You can learn more about the slope in brainly.com/question/9801816
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7/4
4 goes into 7 one time.
3 left over.
1 3/4
The answer is 81 because 27 x 3