Me it’s super easy. based on the given information, which conjecture is invalid? given: a rectangle has a perimeter of 24 inches

The conjecture that would be incorrect is the third conjecture "The rectangle has a length of 12." The perimeter is the sum of all the sides, and if 2 of the sides are 12, that means that half of the perimeter is already 24, which means that the other 2 sides would have to be 0, which is impossible.

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

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step-by-step explanation: