Neptune's average distance from the sun is 4.503 x 10e9 km. mercury's average distance from the sun is 5.791 x10e9 km. about how many times farther from the sun is neptune than mercury?

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!