Which relation is a function?{(1, −1), (−2, 2), (−1, 2), (1, −2)}

{(1, 2), (2, 3), (3, 2), (2, 1)}​

{(1, 4), (2, 3), (3, 2), (4, 1)}

{(4, 2), (3, 3), (2, 4), (3, 2)}

Final answer:

The four equivalent expressions for 90 + 21 can be represented as separate sums, number line jumps, or real world problems, all of which equal 111.

Explanation:

The student has asked for four equivalent expressions for 90 + 21. Here are four possible representations:

• Adding the subsequent numbers in a sequence where the numbers are 90 and 21, which simplifies to 111.
• Calculating the total value of two separate groups, one of 90 and another of 21, which when combined gives 111.
• A number line representation where one starts at position zero and makes two jumps, one of 90 units and a second jump of 21 units, which lands at 111.
• A real-world problem where one has 90 of something and is given 21 more, resulting in a total of 111.

Learn more about Math here:

brainly.com/question/33365067

#SPJ3

Step-by-step explanation:

In a secured loan, collateral is the security that is kept against the failure of paying off the loan payment from the side of borrowers.

That means if the borrowers is not able to pay off the loan in future due to some circumstances, then the lender will use his collateral as a valuable property and his property becomes the property of lender of the same amount of the loan.

In a secured loan, collateral is valuable property that the borrower promises to give the lender in the event of default on the loan.

A collateral loan is a type of secured loan requiring a borrower to pledge an asset to avail of the loan. The asset, called a 'collateral,' is liquidated by the lender in case the borrower defaults. On the other hand, unsecured loans do not require the borrower to pledge collateral.

In a secured loan, collateral is the security that is kept against the failure of paying off the loan payment from the side of borrowers.

That means if the borrowers is not able to pay off the loan in future due to some circumstances, then the lender will use his collateral as a valuable property and his property becomes the property of lender of the same amount of the loan.

Hence, in a secured loan, collateral is valuable property that the borrower promises to give the lender in the event of default on the loan.

Learn more about the secured loan here:

brainly.com/question/17077155.

#SPJ6

Answer:   $195.70

Step-by-step explanation: