Kendall is planning to buy a laptop for $1,200 each months she double the amount she saved the previous month if she saves $20 the first month in how many months will kendall have enough money to buy the laptop?

After 6 month she can save enough money to buy the laptop.

Step-by-step explanation:

Consider the provided information.

Kendall is planning to buy a laptop for $1,200 each months she double the amount she saved the previous month if she saves $20 the first month.

Let say first month she save $20 then in next month she will save $40 and so on.

Let us make a table as shown below:

Months          Money Saved          Total Money Saved  

1st                      $20                                $20

2nd                    $40                       $40+$20 = $60

3rd                     $80                       $80+$60 = $140

4th                     $160                      $160+$140 = $300

5th                     $320                     $320+$300 = $620

6th                     $640                     $640+$620 = $1280

Hence, after 6 month she can save enough money to buy the laptop.

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10