Hurry pls answer :((

Initial Question:
What I Know:
Point of Confusion:
Steps:

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Find the missing dimension! need asap! tiny square is a =3025 in ²

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?