Question

Sumation of n=1 - 20 (5n+7)

Answer 1

Answer:

Your question in equation form is

∑ₙ₌₁→₂₀ (5n+7)

This is equal to 12+17+22+27+32+37+42+47+52+57+62+67+72+77+82+87+92+97+102+107

=

1190