Rueben has some photographs printed. the cost is £1.50 for postage and 15p for each print. the total cost for rueben is £3.90. how many photographs does he have printed?

10

Step-by-step explanation:if i did this right you just do 15 divided by 1.50 and you get 10

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.