Answer:
-4
Step-by-step explanation:

but there is a negative sign so -4
Answer:
36
Step-by-step explanation:
a^2 =6^2=36
Answer:
-2, -1/2
Step-by-step explanation:
Answer:


Step-by-step explanation:
Let x be the number of adult tickets and y be the number of children's tickets.
We are given that there are total 12 people. Therefore, we can set:

Moreover, we are given that an adult ticket costs $21.50 and a child's ticket costs $14.75, therefore, cost of x adult tickets will be
and cost of y children's ticket will be
. We can form the second equation by setting the total cost of tickets as:

Therefore, the required system of equations that could be used to find x and y will be:


Answer:
29.04
Step-by-step explanation:
10.89 divided by three is 3.63, and 3.63 multiplied by 8 is 29.04