Y = -2 + 6 should be the equation
You can use a calculator online you know? It is 21.3
Answer:
-1 2/3
Step-by-step explanation:
if PLAN A is cheaper than PLAN B then,
P (A) < P (B)
30+0.01t < 20+0.05t (subtract 0.05t from both sides)
29.95-0.04t < 19.95 (subtract 29.95 from both sides)
-0.04t < -10 (divide both sides by -0.04)
t > 250
So plan A is cheaper than plan B when you send more than 250 texts.
Hope it helps.
Your final answer would be 14a-5c
