Evaluate 3a²b + 1–20 if a=-5, b=9, and c=-10.

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 -.016x= -16. need solving this

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?