I'm sure this is the answer
D) an = 2 + 5n
ùwú~☆
Answer:

Step-by-step explanation:
c varies jointly with d and the square of g


where, k is constant of proportionality.
Put the given value c = 30 when d = 15 and g = 2 and find out k


If c = 6 and g = 8 then d = ?



Hence, The value of d is 
That would be a unique triangle
442 is the answer thedjfbbxhcbdhx