A farmer plants white rice and brown rice on 10 acres of land. He must use pesticides on all 10 acres and he has 18 liters of pesticide to use. White rice requires 2 liters of pesticide per acre and brown rice requires 1 liter of pesticide per acre. If he can earn $5000 for each acre of white rice and $3000 for each acre of brown rice, how many acres of each should he plant to maximize his earnings? What are his maximum earnings? Let x represent the white rice.

Let y represent the brown rice.

The farmer should plant acres of white rice and acres of brown rice to obtain his maximum earnings of .

Two groups of students were asked how many hours they spent reading each day. the table below shows the numbers for each group: group a 1 2 1 1 3 3 2 2 3 group b 3 2 3 2 2 2 1 1 2 based on the table, which of the following is true? the interquartile range for group a students is 0.5 less than the interquartile range for group b students. the interquartile range for group a students is equal to the interquartile range for group b students. the interquartile range for group a employees is 0.5 more than to the interquartile range for group b students. the interquartile range for group a employees is 1 more than the interquartile range for group b students.