Answer:
C
Step-by-step explanation:
if you subtract 55 from 90 and divide it by 5 then you get your answer, which is C:7
Hello : here is a solution
4 because if there are only 4 corners to the fence then the least he can plant is 4
Answer:
Step-by-step explanation:
Gauss n(n+1)/2
which is n? the last number of the sum
500(500 + 1)/2 = 125,250
800(800+1)/2 = 320,400
uh oh forgot to read the last one, give me a minute. done
(800 - 501 + 1)(800 + 501)/2
300(1301)/2 = 195,150
or
320,400 - 125,250 = 195,150