Answer:
$13.
Step-by-step explanation:
Let x represent money that Alison has.
We have been given that Leo has 7 times as much money as Alison had. So the amount of money that Leo has, would be
.
We are also told that Leo had $91, so we will equate
with 91 and solve for x as:

To solve for x, we will divide both sides by 7:


Therefore, Alison has $13.
Answer: 7/21 is the answer because 7 * 2 = 14 and 21*2=42
Step-by-step explanation:
Answer:
infinitely many solutions
Step-by-step explanation:
-8T- 20 = 4(-2T -5)
Distribute the 4
-8T- 20 = (-8T -20)
Add 8T to each side
-8T+8T- 20 = (-8T+8T -20)
-20 = -20
Since this is a true statement, there are infinitely many solutions
15/3 = 35/x
Cross multiply.
15x=105
105/15=x
x=7
Abe have to take 7 weeks of school this quarter.
The population of Saya islands after 4 months will be 8,100 people.
It is given in the question that:-
Initial population of Saya island = 100 people
The population of the Saya island tripled every month
We have to find the population of the island after 4 months.
The population of Saya island after 1 month = 100*3 = 300 people.
The population of Saya island after 2 months = 300*3 = 900 people.
The population of Saya island after 3rd months = 900*3 = 2,700 people.
The population of Saya island after 4th months = 2700*3 = 8,100 people.
To learn more about population, here:-
brainly.com/question/27991860
#SPJ4