The sales totals at robert's food store have increased linearly over the month. which of these best shows the sales in the first three months?
$1200 in the first month, $1212 in the second month, $1224.12 in the third month
$1200 in the first month, $1236 in the second month, $1273.08 in the third month
$1200 in the first month, $1285.48 in the second month, $1370.96 in the third month
$1200 in the first month, $1224.28 in the second month, and $1248.48 in the third month

Answer:  $1200 in the first month, $1285.48 in the second month, $1370.96 in the third month

Step-by-step explanation:

We know that when a function increases linearly, then the  rate of change of function over time remains constant.

Here, but

⇒ Rate of change is not constant.

 Here, but

⇒ Rate of change is not constant.

 Here, and

Thus,  the rate of change is constant i.e. $85.48 per month.

Hence, This  shows the sales in the first three months.

Here, but

⇒ Rate of change is not constant.

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315

b.my answer is b.

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