It cost Conner $1.20 to send 8 text messages. How much would it cost to send 98 text messages?

14.70

Step-by-step explanation:

We can write a ratio to solve

1.20                    x

=

8 messages      98 messages

Using cross products

1.20 * 98 = 8x

117.60 = 8x

Divide by 8

117.60/8 = 8x/8

14.70 =x

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!