Which is the definition of a square? a quadrilateral with four congruent sides and four congruent angles a quadrilateral with four congruent sides a quadrilateral with interior angles that sum to 360° a quadrilateral with four right angles

the first option

Step-by-step explanation:

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

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