Find the value of x. The figure shows a quadrilateral with the left and right sides marked as parallel and the top and bottom marked congruent. The bottom left interior angle is labeled 5x degrees and the bottom right interior angle is labeled 4x degrees.
[p. 153]

A. x = 5
B. x = 10
C. x = 20
D. x = 40

9

Step-by-step explanation:

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range =5

step-by-step explanation:

to find the range, we take the largest value and subtract the smallest value.

the largest value is 5

the smallest value is 0

the range is 5-0   =5