Please help me, I’m gonna die :(

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

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 ?

Find the value of x. round the length to the nearest tenth