The answer is A I hope this helps
Answer:
Chile anyways so-
Step-by-step explanation:
Let y equal to
the total fare and x is the mile of taxi ride. So the equation is
Y = 0.55x + 1.75
Since Susie has
$10 to spend for a taxi cab, so he can have
10 = 0.55x +
1.75
X = 15 miles of
taxi ride
So the system of
inequality is
10 < 0.55x +
1.75
<span>X > 2</span>
Answer:
a) Two half lives, b) 
Step-by-step explanation:
a) The polonium-210 has a half life of 138.4 days. Therefore, 1.994 half lives have past.
b) Mass decay is described by the following exponential model:

The time constant for the isotope is:


The mass of the isotope after 276 days is:

