Answer:
it might go like A= 12 B= 0 C = -6
Answer: x=14.4
Step-by-step explanation:
The triangle shown in the figure attache is a right triangle. Therefore, you can calculate the missing side "x" as following:

Where:

When you solve for x and substitute the values shown above, you obtain the following result:

≈
Answer:
Adult= $24
child= $21
Step-by-step explanation:
first let's create an equation for each one.
Day 1: 7x+8y=168
day 2: 14x+13y=294
By doing so we can either graph and get the points for x,y or we can substitute each (x=0) (y=0) and solve manually.
x-int.= (24,0)
y-int.=(0,21)