Y+60=180 then y=120
5z-100=60 then 5z=160 then z=32
Okay so the first one is 3 dollars each..because if you subtract 9 from 21 you will be left with 12 dollars so if he spent the money on FOUR tickets it would be 3 because 3 times 4 is 12 :)
Answer:
6:20
Step-by-step explanation:
57 divided by 9 = 6,333333333333
6,3 mites is almost equal to 6:20
Refer to this previous solution set
brainly.com/question/26114608
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Problem 4
Like the three earlier problems, we'll place the kicker at the origin and have her kick to the right. The two roots in this case are x = 0 and x = 20 to represent when the ball is on the ground.
This leads to the factors x and x-20 and the equation 
We'll plug in (x,y) = (10,28) which is the vertex point. The 10 is the midpoint of 0 and 20 mentioned earlier.
Let's solve for 'a'.

This then leads us to:

The equation is in the form
with 
The graph is below in blue.
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Problem 5
The same set up applies as before.
This time we have the roots x = 0 and x = 100 to lead to the factors x and x-100. We have the equation 
We'll use the vertex point (50,12) to find 'a'.

Then we can find the standard form

The graph is below in red.