PLSS HELP DUE IN 30 MINUTES!!!!!

a farmer can spend no more that $4,000 on fertilizer and seeds. the fertilizer costs $2 per pound and the seeds cost $20 per pound

to summarize the situation, the farmer writes an inequality:

2d+ 20s <_ 4,000, where f is the number of fertilizer and s is the number of pounds of seeds.

which graphs shaded region shows the possible combinations of fertilizer and seeds the farmer can buy?