Answer:
5
Step-by-step explanation:
Put 3 where x is and do the arithmetic.
f(x) = 2x -1
f(3) = 2·3 -1 = 6-1
f(3) = 5
67+74=141
180-141=39
Your answer is 39
Answer:
Pollution was diluted
Step-by-step explanation:
Answer:
f:h = 1 : 10
Step-by-step explanation:
