Answer:
t ≥ 8.1
Explanation:
70 ≤ 10t-11
Move the 11 to the left side of the equation, changing the sign (of the 11) to do that.
70 + 11 ≤ 10t
81 ≤ 10t
Divide both sides by 10.
8.1 ≤ t
I flip the equation so the variable is on the left: t ≥ 8.1
Since you didn't include the answer options, I'm not sure if they wanted us to solve for x and write the answer like that, or to write it like this:
t= [8.1, infinity)
Hope this helps! If it's possible though next time could you include the answer options for the problem answerers? It would help so much as we wouldn't have to do extra work and we'd know what format they want the answer to be in.