If x is equal to the sum of the integers from 10 to 30, inclusive, and y is the number of even integers from 10 to 30, inclusive, what is the value of x + y? Choose the most appropriate option.
A) 401
B) 411
C) 421
D) 431
E) 441
x = 10 + 11 +...+ 30 = 21(20) = 420   y = 11   x+y = 431   The answer is 431.
<result>D</result>
If x is equal to the sum of the integers from 10 to 30, inclusive, and y is the number of even integers from 10 to 30, inclusive, what is the value of x + y?