Zarah pays the same amount for each text message she sends.
In June she pays £4.16 for 52 text messages.
In July she pays £5.12.
How many text messages did she send in July?

64 messages

Step-by-step explanation:

first we simplify the question if the cost of 52 messeges is 4.16 what about the no. of messages that cost 5.12

4.16=52

5.12=?

we multiply 5.12 by 52 and divieded 4.16

5.12*52/4.16=64

answer: y = -2.5x - 15

              (-6,0)

step-by-step explanation: