Jason has started a lawn care business. He charges $20 per hour to mow lawns and $25 per hour for gardening. Because he is still in school, his schedule can only fit in at most 30 hours per week. His goal is to make at least $650 per week.

To achieve the goal, he needs to work all 30 hours, with at least 10 hours on gardening, and the rest mowing.

Step-by-step explanation:

M = $20 per hour mowing

G = $25 per hour gardening

Maximum = 30 hours per week.

To make at least $650 per week, if he does only mowing, he makes only $600.

to make the extra $50, he needs to replace (650-600)/(25-20) = 10 hours of mowing with gardening.

To achieve the goal, he needs to work all 30 hours, with at least 10 hours on gardening, and the rest mowing.

this is answer of 144 cubic meters