Can someone help me with this

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

What is 20+(5 x 2/5 )+ 3 show your work

Which of these triangle pairs can be mapped to each other using two reflections?