2 years ago

3.

Mathematics

1 answer:

Semmy [17]2 years ago

8 0

Answer:

20m+60

Step-by-step explanation:

given,

mark=m

june=m+6(6 years older that mark)

so,

after 10 years,

10(m+(m+6)

=10(2m+6)

=20m+60

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