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Shkiper50 [21]
3 years ago
9

Please help, will Grant brainliest

Mathematics
2 answers:
Ahat [919]3 years ago
5 0

Answer:45

Step-by-step explanation:

neonofarm [45]3 years ago
3 0

Answer:

45.

Step-by-step explanation:

This is the sum of  5 lots  of 3i  where i  = 1 to 5

= 3*1 + 3*2 + 3*3 + 3*4+3*5

=  3+6+9+12+15

=  45.

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