Answer:
nisha
Step-by-step explanation:
you have to pick the middle one
The trapezoid on the bottom right doesn’t belong. All the other quadrilaterals have opposite sides that are congruent.
10 years, because In 5 years after 2008, 2013 you get new math books 5 more years you get another set of math books-2018, but 2008 plus 10 years you get science books which is also 2018 which is also when you get another set of math books. So the next year you get math books and science books shipped the same year is 2018. 2018-2008=10 so 10 years pass
Answer: x = 4, y = 3
<u>Step-by-step explanation:</u>
and 
Using substitution method we get:
