It cost Brody $9.80 to send 196 text messages. How many text messages did he send if he spent $4.20?

Step-by-step explanation:

9.80 = 196

1 = 196/ 9.80

4.20 = 196/9.80 x 4.20

4.20 =

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

529 and 531

step-by-step explanation: