I was just wondering this is one of my questions in my math books and i needed help (Its really long i did all the work i just wanna double check

Find the value of x for which abcd must be a parallelogram -9-6x x-30

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 ?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x