5n cubed - 230 = 90
. i don't understand.

So 5n^3 - 230=90 first you add 230 to both sides so you get 5n^3=320 than you divide 5 from both sides so you get n^3=64 so you take the cube root of both sides to get the answer... n=4

The slope best fit isc. 1/6 mile per hour

A. but. i don’t nohxbzbz