Geneva rode her bike a total of 2 1/2 miles from her house to school. First she rode 4/5 mile from her house to the park.
Then she rode 1/5 mile from the park to her friend’s house.
Finally she rode the rest of the way to her school.

How many miles did she ride from her friend's house to school?

Allie answered 72% of the questions on her math test correctly. if she answered 18 questions correctly, how many questions were on the test?

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?

Find the value of x for which line a is parallel to line b