In 1995, the average life expectancy in the united states was 75.8 years. the average life expectancy in 2015 was 78.8 years. what is the percentage increase in life expectancy in the last 20 years? choose the closest answer. 3.5%

4%

Explanation: original answer is 3.96%, but the 6 rounds up the 9, and the 9 rounds up to an even 4%.

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answer: the answer is a

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles