kiara enjoys rollerblading on paved trails. this graph shows how long she spent on different days…

kiara enjoys rollerblading on paved trails. this graph shows how long she spent on different days. rollerblading times how much total time did kiara spend on the rollerblading trips that took her exactly 2 1/2 hours to finish? 3 hours 6 hours 7 hours 7 1/2 hours
Answer
Explanation:
Step1: Identify number of trips at $2\frac{1}{2}$ hours
Count the 'x's above $2\frac{1}{2}$ on the graph. There are 3 'x's.
Step2: Calculate total time
Each 'x' represents a trip of $2\frac{1}{2}=\frac{5}{2}$ hours. Multiply the number of trips (3) by the time per trip $\frac{5}{2}$ hours. So, $3\times\frac{5}{2}=\frac{15}{2} = 7\frac{1}{2}$ hours.
Answer:
$7\frac{1}{2}$ hours