Is 2/5 - (-5/6) positive, negative, or zero?

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

Match each function with its rate of growth or decay

What does the relationship between the mean and median reveal about the shape of the data