Answer:
Text message sent by alonzo is 15
message sent by Bill 60
Message sent by kala is 22
Explanation:
It is given that Kala bill and alonzo sent a total of 97 text messages during weekends
Now let alonzo sent x text messages
According to question Bill sent 4x text messages
And Kala sent x+7 text messages
As total text messages is 97
So x+4x+x+7=90
6x=90
x=15
So text messages sent by alonzo is 15
Message sent by Bill is 4×15 = 60 message
Message sent by kala = 15+7 = 22