Find the number of ways of selecting 15 balls consisting of 5 black. 5 blue and 5 white balls from a box which contains 6 black, 7 blue and 8 white balls

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.

8

step-by-step explanation:

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )