Answer:
A is wrong. A debit card uses the money you have.
Answer:
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.
Or if he works all on gardening, he only needs to work 26 hours to make $650 a week.