The transaction volume V (in billions of dollars) of purchases made on debit cards in the United States can be approximated by the equation V = 133.4 x +316 , where x is the number of years since 2000. Approximately how much was the transaction volume in the year 2000?

$316 billions was the transaction volume in the year 2000.

Step-by-step explanation:

Given:

The transaction volume V (in billions of dollars) of purchases made on debit cards in the United States can be approximated by the equation V = 133.4 x +316 , where x is the number of years since 2000.

Now, to find the transaction volume in the year 2000.

The number of years since 2000 =

And the transaction volume (in billions of dollars) of purchases made on debit cards in the United States can be approximated by the equation:

As, is the number of years since 2000.

Thus, the value of

Now, solving the equation by putting the value of :

Therefore, $316 billions was the transaction volume in the year 2000.

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.