It is an algebra 2 question i do not know if that is allowed. if anyone can anyway.

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.