Write i in exponential form

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

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

What does x = in this equation x+3+2x=x+5