You can answer any 13 questions from the 18 questions on an exam. In how many different ways can you choose the 13 questions, assuming that the order in which you choose the questions in irrelevant?

the eight graders whould be the answer

step-by-step explanation: could you give me 5 stars

it is 32.5

i hope i could u.

step-by-step explanation:

consider the parallelogram shown in the attached image.

in the parallelogram hijk, the length of hk is given as,

from the properties of parallelogram we know that the opposite sides of a parallelogram are parallel to each other and are equal in measure.

therefore, the length of the side ij must be equal to the length of the side hk and that is .

hence, the expression for the length of ij confirms that hijk is a parallelogram.