Suppose $abcd$ and $efgh$ are congruent parallelograms with $ad = 10$. if the area of $abcd$ is $112$, find $en$.

What situation is an example of an observational study

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.