As an estimation we are told £3 is €4.
Convert £39 to euros.

52

Step-by-step explanation:

£:€

3:4

39:x

we need to figure out what to multiply three to get 39

So we write the following equation

3x=39

divide and get x=13

then mulitply 4 by 13 and get 52

52 euros

C=$25+$15m

Step-by-step explanation:

C is Cost

m is 15 minutes

The price for a visit would be $25 + $15 times the amount of time they work on repairs.