i cannot follow the answer explanation; please break down in simple terms for me. thank you!
for any positive integer n, the sum of the first n positive integers equals n(n+1)/2. what is the sum of all the even integers between 99 and 301?
a) 10,100
b) 20,200
c) 22,650
d) 40,200
e) 45,150
for any positive integer n, the sum of the first n positive integers equals n(n+1)/2. what is the sum of all the even integers between 99 and 301?
a) 10,100
b) 20,200
c) 22,650
d) 40,200
e) 45,150
