What does this mean? I do not understand

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

Use the multiplier method to incrases £258 by 43%

If your annual gross income is $62,000 and you have one monthly car payment of $335 and a monthly student loan payment of $225, what is the maximum house payment you can afford. consider a standard 28% front-end ratio and a 36% back-end ratio. also, to complete your calculation, the annual property tax will be $3,600 and the annual homeowner's premium will be $360.