89 is the missing value your welcome
I hope this helps you
-7.x^3=2.7.9
x^3=-18
x=i.(3square root of 18)
The amplitude of this function is 4/5. Be sure you understand why that is so.
Step-by-step explanation:
3a-50=8
3a=50+8
3a=58
a= 19and 1/3
Answer:

Step-by-step explanation:
Let x be the number of games
Cost of 1 game = $9
Cost of x games = 9x
he gets a student discount of $10.
So, Cost after discount = 9x-10
Let the total cost be T
So, 
So, An equation to represent the total cost of playing laser tag including the discount is 