Answer:
This question is only if 25 points. And you have typed 50 points.
Answer is 16-4-2-1
He bought 3 cucumbers because 3*5=15, 15-6=9, 9*.7=6.3, .3*3=.9, .9+6.3=7.2
Answer:
3 is correct answer
Step-by-step explanation:

hope it helped you:)
I'm not quite sure what you asking here but if your asking how to answer it in "math terms" than I'll be happy to explain :)
So "times" means multiply and "increase" means add so righting this in math terms would be
6x + 5
because it's six times "a number" which you can replace with x!
Let me know if you have any questions :3