A metal stays solid at Fahrenheit temp below 1868.5

Question

Determine (in terms of an inequality) those Celsisu temp, for which the metal stays solid. Use the formula

F=9/5c+32

Answer 1

1868.5 = (9/5)c + 32
multiply by 5
9342.5 = 9c + 160

solve for c

then change to inequality

Answer 2

cIc<1020.28

Thanks!