The depends on the state and circumstances. see links below
No, not the whole household's income, just the ex-spouse's income. If he/she is remarried the new spouse's income does not count. Only the biological parents pay for their child.
if you are paying child support and have a new spouse, their income will not count toward child support unless the two of you have your own children together.
Only when the new spouse is applying for credit jointly with the bankrupt partner.
No. Your new spouse will not pay for your child. That is for the parents to do.
The new spouse is not responsible for his/her spouse's children.
Generally, no. Child support is based on the resources of the parent, not the parent's spouse.
No, the adoption negates any such claims.
In general, (re)marriage should not increase or decrease one's child support obligation, regardless of the new spouse's income or the presence of stepchildren. However, to collect unpaid support, the State may place liens on real and personal property, including bank accounts, owned by the obligor, even though the spouse is a joint owner.
Unlike most states, Pennsylvania has no provision for allowing or disallowing a new spouses income in the calculations. It is left at the discretion of the judge ordering support. In many cases, if the new spouse has a significant income which creates a large income variation between the custodial and non-custodial households, a judge will rule to include the new spouse's income in the calculations.
no
no the new spouse is not legally responsible for a child that is not theirs
no