Answer:
B
7 less than 3 times a number (X) is (3x-7), and then the sum of these two numbers means we have (3x-7)+X, and then we know this equals 109, leaving us with:
(3x-7)+x = 109
To find the speed you must write S= d/t so for the first one we will chang 15 m to b so it is = 0.25h so s=3/0.25h = 12km/h an why secand is 45 m to h = 0.75h so S=d/t S =12/0.75 =16 km/h the to find the totel speed we should + the speed together so 12 + 16 = 28 km/h
Answer:
The function is 
Step-by-step explanation:
From the question we are told that
The rate of growth is
The total profit is
$25,000
The time taken to make the profit is 
From the question
is the rate of growth
Now here x represent the time taken
Now the total profit is mathematically represented as

So using substitution method
We have that


So

![p(x) = {\frac{1}{2} [ e^{-u}} +c ]](https://tex.z-dn.net/?f=p%28x%29%20%3D%20%20%7B%5Cfrac%7B1%7D%7B2%7D%20%5B%20e%5E%7B-u%7D%7D%20%2Bc%20%5D)
recall
and let 
At x = 2 years
$25,000
So
Since the profit rate is in million
$25,000 =
$0.025 millon dollars
So
=>
So the profit function becomes

Answer:
He and each of his sisters will recieve 1/4 of the pizza
Step-by-step explanation: