Answer:
tickets were sold to student and
tickets were sold to adults
Explanation:
Let the number of tickets purchased by students be "X" and the number of tickets purchased by adults be "Y"
Given
Total number of tickets sold 
Total amount collected by selling
tickets
dollar
Cost of one ticket of student
dollar
Cost of one ticket of adult
9 dollar
Two equation are as follows
------Eq (1)
-------- Eq (2)
Multiplying eq (1) by 9 and subtracting from equation 2 we get

Substituting the value of X in equation 1 we get

Therefore,
tickets were sold to student and
tickets were sold to adults
Answer:
C. To enforce property rights
Explanation:
Government intervention in market can be non materistically via regulation , materistically via taxes & subsidy.
Although the second materislistic way of tax, subsidy comes under the perview of 'Government Budget' .
Government budget is anual financial statement showing economy's expected revenue & expenditure .
Economic growth & stability by reallocation of resources , reducing income inequalities - reflect 'efficiency' & 'equity' as valid reasons .
Foreign protection is also not invalid depending upon the initial budding stage of a developing economy & its global stand. Eg - India 1950 to 1990 .
However all these are progressive legitimate reason for govt. Intervention .
But , enforcing property rights is a feature of 'socialistic (communistic) economy - which has its own demerits like loss of consumers soveireignity , lack of postive competitive efficiency , govt overburden.
Answer: A. Managers scan their firm's environment to reduce uncertainty.
Explanation: In the context of the external environment of a firm, managers scan their firm's environment to reduce uncertainty. In doing so, they stay up to date on important factors in their industry which helps to reduce uncertainty. Environmental scanning simply involves searching for cues, important happenings, events, issues etc. that might affect an organization either positively or negatively.
No answer choices......
In a mortgage, the amount of money borrowed is called the Loan principal, or just a loan.