(5x+2 )(x+7), i hope this helped!
75%
Explanation: divide 6/8
Mr. Jackson invested $800 at 6% per year and $ 2400 at 4 % per year
<h3><u>Solution:</u></h3>
Mr. Jackson invested a sum of money at 6% per year, and 3 times as much at 4% per year.
Let the sum invested be ‘a’ and ‘3a’ at 6% per year and 4 % per year respectively
Also, his annual return totaled $144
We can form following equation on the basis of question:-

a = $800
The amount of money invested at 6% = a = 800
The amount of money invested at 4 % = 3a = 3(800) = 2400
So, the amount of money invested at 6% is $800 and the amount of money invested at 4% is $ 2400
Answer:
i think its 55 :>>>>>>>
Step-by-step explanation:
Answer:
n=5
Step-by-step explanation:
7n-4=31
+4 +4
<u>7</u>n=<u>35</u>
7 7
n=5