What’s four plus four

Idont get this question can someone me solve it? ** the distance light travels in one second (1 light second) is about 1.86 ×10^5 mi. saturn is about 475 light-seconds from the sun. about how many miles from the sun is saturn..my guess is 8.83* 10^7 you so much

The value √10 and √15 are plotted on the number line

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?