For every 7 white t-shirts they manufacture, they should manufacture 4 yellow t-shirts. the ratio of the number of white t-shirts to the number of yellow t-shirts should be

7:4 would be the correct answer because it shows for every 7 white shirts there is 4 yellow t-shirts being made.

(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.