To find the percentage of Jessica's income spent on monthly rent, we first need to calculate her total monthly expenses. Here’s the breakdown of her expenses:
- Monthly rent: $800
- Cellphone bill: $125
- Utility bill: $350
- Groceries: $350
- Transportation: $150
Now, let's sum these expenses:
\[ 800 + 125 + 350 + 350 + 150 = 1775 \]
So, Jessica's total monthly expenses are $1775.
Next, we want to calculate what percentage of her income is spent on rent. To find the percentage, we can use the formula:
\[ \text{Percentage} = \left( \frac{\text{Rent}}{\text{Total Expenses}} \right) \times 100 \]
Substituting the values:
\[ \text{Percentage} = \left( \frac{800}{1775} \right) \times 100 \]
Calculating this gives us:
\[ \frac{800}{1775} \approx 0.4504 \]
Now, we multiply by 100 to get the percentage:
\[ 0.4504 \times 100 \approx 45.04 \]
Rounding to the nearest whole number, the percentage of her income that was spent on monthly rent is approximately:
\[ \boxed{45} \]