30t + 20c =< 300
5t + 10c =< 110
10c =< 110-5t
30t + 220-10t =< 300
20t =< 80
t = 4
120c + 20c =< 300
20c = 180
c = 9
18x/18 = 2/3 • 18
Flip reciprocal of 18 which is 1/18 so it would be 2/3 • 1/18 the 2 and 18 can be simplified when cross multiples so it would then be 1/3 • 1/9 which is x=1/27
The point-slope form:

We have the points
and
.
Substitute:

The standard form: Ax + By = C

Answer:108
Step-by-step explanation: divided 81 and 3. the answer is 27. multiply 27 x 4 you get 108.