Use this formula...
(-4 + 8) / 2 , (8 + (-4)) / 2
From there you get...
4 / 2 , 4 / 2
Simplify and you get
(2 , 2)
Cost of a ticket = $19
So, cost of two tickets = 19 * 2 = $38
Now, he makes, $4.75 in an hour.
Let, the number of hours for that much money = x
It would be: 4.75x = 38
x = 38 / 4.75
x = 8 hours
In short, Your Answer would be 8 hours
Hope this helps!
You need to subtract the bonus points form the final score: 91-4=87
19.00 3.50 11.00 4.47 makes it add up to hours so that will be answe C
11. you do 3x3=9 then plus 9+2 = 12 then 12 x 12 = 144
sorry idk 10.