Can someone me with number 8-a) and b)?

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

Your company withheld $4,463 from your paycheck for taxes. you received a $713 tax refund. select the best answer round to the nearest 100 to estimate how much you paid in taxes.