Answer: x=16 and 6.7
Explanation:
Sqrt (3x + 1) -7=0
Sqrt 3x + 1 = 7
3x + 1 = 49 (square both sides to get rid of radical)
3x = 49-1
x = 48/3 = 16
67 • 0.6^x
When you are multiplying with number less than 1 the number decrease
If x was 2 then 67 • 0.6^2 = 67 x 0.36
If x was 3 then 67 x 0.216
If x was 4 then 67 x 0.129 approximately 67 x 0.1 = 6.7
