The answer is x=6. This is because 6+4 equals 10
Answer: -5/3
Step-by-step explanation:
Use the slope formula: 
You substitute the numbers in and subtract to get -5/3.
So do 81 divided by 4 we know that 80 divided by 4 is 20 so it would be 20 and some change
Answer:
Ratio between balances will be:

Where;
x = deposit
%i = interest rate annual
n = years
Step-by-step explanation:
Lets say first deposit is x$ for both investment and annual interest rate for both investment are %i. Also, they stayed under i interest in n years:
Total balance for simple interest is:

How ever total balance for compound interest is:

Answer:
Adult= $24
child= $21
Step-by-step explanation:
first let's create an equation for each one.
Day 1: 7x+8y=168
day 2: 14x+13y=294
By doing so we can either graph and get the points for x,y or we can substitute each (x=0) (y=0) and solve manually.
x-int.= (24,0)
y-int.=(0,21)