What is the security for the repayment of a secured loan called?

The answer is collateral.

Step-by-step explanation:

Collateral is the security for the repayment of a secured loan.

Secured loan is a loan where a collateral is kept against the loan. Like for a car loan, the car is kept as a collateral.

This is done because when you default on payment of the loan, the bank can seize your collateral and sell that off to recover its dues.

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places