Answer:
85%
Step-by-step explanation:
9+51 = 60
(51/3) ÷ (60/3) = 17/20
(17/20)% = 85%
Answer choice D, A,B, and C both equal 3.
The formula for the triangular sequence is Xn=n(n+1)/2
So X25=25(25+1)/2=325
You need to include more information
Answer:
Infinity
Step-by-step explanation:
Because there are lots of ways