Answer:
y=7600(5^(t/22))
Step-by-step explanation:
This is going to be an exponential function as it grows rapidly. 
This type of question can be solved using the formula y=a(r^x), where a is the inital amount, r the factor by which the amount increases and x is the unit of time after which the amount increases.
x=t/22
a=7600
r=5
∴y=7600(5^(t/22))
 
        
             
        
        
        
Answer:
f(x) = 5x - 30
Yes it is a function
Step-by-step explanation:
Because when you input 0 you get -30 we know it starts at 0 or (0,-30). This gives us b in the equation y = mx + b. 
We know that for every 4 cars washed it increases by 20. So 20/4 is 5. This tells us m = 5. 
Plug it all in and you get  y = 5x - 30 or f(x) = 5x - 30
 
        
             
        
        
        
Answer: a. g(x) = 3^x + 2 b. y = 3 c. same graph but shifted two units up
Step-by-step explanation:
 
        
             
        
        
        
For there to be 1 car, we consider two possible outcomes:
The first door opened has a car or the second door opened has a car.
P(1 car) = 2/6 x 4/5 + 4/6 x 2/5
P(1 car) = 8/15
For there to be no car in either door
P(no car) = 4/6 x 3/5
P(no car) = 2/5
Probability of at least one car is the sum of the probability of one car and probability of two cars:
P(2 cars) = 2/6 x 1/5 
= 1/15
P(1 car) + P(2 cars) = 8/15 + 1/15
= 3/5
 
        
             
        
        
        
Answer:slope of line is 5/7
Explanation:The slope of the line can be calculated using the following rule:
slope = 

The given points are:
(-9,-10) which represent (x1,y1)
(-2,-5) which represent (x2,y2)
Substitute with the points in the above equation to get the slope as follows:
slope = 

 = 5/7
Hope this helps :)