Money that a creditor must by law accept in payment for debts is called

Legal Tender, is the right answer.

Explanation:

Legal tender is a means of payment approved by a legal order to be adequate for meeting a monetary commitment. Every authority concludes what is legal tender, but typically it is anything which when submitted (“tendered”) in retaliation of a debt extinguishes the obligation. There is no commitment on the lender to affirm the offered payment, but the mortgage is nonetheless discharged.

whose power in the senate is equal to the power of the speaker of the house?

the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.