The cost for traveling in tina's taxi is 9 pence per 100m
sonya travels 15.62km
how much does she pay

1405.8 pence fare

Step-by-step explanation:

First we have to change meters into km by dividing the distance by 1000

here we have:

Fare: 9 pence

Distance: 100m/1000 = 0.1 km

when it was

0.1 km > 9 pence fare

if 1 km > 9/0.1 fare

if 15.62 > 9*15.62/0.1

15.62 km > 1405.8 pence fare.

y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5