Question

plz answer these questions

Answer 1

Answer:

hello friend here ur answer

Step-by-step explanation:

1)1+2+3+4+5+6+7=28(sum of first seven no)

multiple of 2=2(28)=56

multiple of 9=9(28)=252

2)-15,-13,-11,-9,-7

sum of above 5 terms=-55