1. Can you describe what needs to be done here?
2. 5a-2<18
5a<20
a<4
3. 2a+8≥ -4(a+1)
2a + 8 ≥ -4a - 4
6a ≥ -12
a ≥ -2
It is D because if you look at the graph every 5 years the acres decrease by 20
Step-by-step explanation:
Let a be the price of 1 adult ticket.
Let c be the price of 1 child ticket.
given,

as equation 1,
and

as equation 2.
Now we will solve for a and c using elimination method of simultaneous equations.
Now we multiply equation 2 by 2 to eliminate a and solve for c.

This new equation will be equation 3.
Now we will use equation 1 - equation 3 to eliminate a and solve for c.

Now substitute c into equation 2.

Therefore one adult ticket will cost $17.50 and one child ticket will cost $9.50.
Answer:
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Step-by-step explanation: