Answer:
z=10 because 3x5=15 and you do the same to the other number.
Step-by-step explanation:
10
To get from 3 to 15 you multiply by 5 so if you multiply 2 by 5 you get 10
the last digit is 5
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245
1m-100cm
2.45m=2.45x100
Answer: 52+5 adn - 2x
