Final answer:
Pablo will save $25 by packing his own lunch in a month.
Step-by-step explanation:
Pablo's mother gives him the choice of spending $1.25 a day on buying a school lunch or saving this money and packing his own lunch. To find out how many dollars Pablo will save in a month, we need to determine the number of school days in a month and multiply it by the amount he would save each day by packing his own lunch.
Let's assume there are 20 school days in a month. If Pablo chooses to pack his lunch instead of buying it, he would save $1.25 per day. To calculate the total savings, we multiply the savings per day ($1.25) by the number of school days in a month (20):
Total savings = $1.25 * 20 = $<<1.25*20=25>>25
Therefore, Pablo would save $25 in a month by packing his own lunch.