The sum of the arithmetic progression will be B. 1251.
How to calculate the value?
It should be noted that this information is about the sum of the arithmetic progression
This will be:
= n/2[2a + (n - 1)d]
= 18/2 [2 × 10 + (18 - 1)7]
= 9[20 + (17 × 7)]
= 9[ 20 + 119]
= 9 × 139
= 1251
Learn more about AP on:
brainly.com/question/24205483
#SPJ1
