Express the polynomial that is twice the sum of 4x2 - x + 1 and -6x2 + x - 4.

Chanelle deposits $7,500 into the bank. she does not withdraw or deposit money for 6 years. she earns 6% interest during that time. what will the balance be when she is finally able to withdraw her money?

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

Math it's appreciated. (picture provided)