The outstanding balance on a particular charge card is totaled $156 billion in 1966 and $390 billion in 2002. estimate the debt in 1999. the debt in 1999 is estimated to be ? ? $ billion

 The debt in 1999 is estimated to be 370.5 billions.

Step-by-step explanation:

Since we have given that

Amount the outstanding balance on a particular charge card in 1966 = $156

Amount the outstanding balance on a particular charge card in 2002 = $390

Let the number of year be x

and let the amount of outstanding balance be y

As we know the formula for "Slope ":

Here is the coordinates :(1966,156) and (2002,390)

now, we know the formula for "Equation of line":

Hence, the debt in 1999 is estimated to be 370.5 billions.

step-by-step explanation:

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