Jessica’s budget includes the following expenses: monthly rent ($800) , cellphone bill ($125) , utility bill ($350) , groceries ($350) , and transportation ($150) . What percentage of her income was spent on monthly rent? Round to the nearest whole number.
The total expenses are $800 + $125 + $350 + $350 + $150 = $<<800+125+350+350+150=1775>>1775.
The percentage of her income spent on monthly rent is $800 / $1775 = 0.45.
Rounded to the nearest whole number, this is 45%. Answer: \boxed{45}.