A = P(1+r)^t
A = amount made after the specified time
P = original amount of money
r = rate
t = time
2500 = 1800 (1 + r)^2
2500/1800=(1800(1+r)^2)/1800
1.3888 = (1+r)^2
1.17851 = (1 +r)
1.17851 - 1 = r
Rate = .17851
Answer:
2/5 <1/2 <5/8<3/4
Step-by-step explanation:
2/5 ⇒40%
1/2 ⇒50%
3/4⇒75/%
5/8 ⇒62.5%
When you write a function in the form
, y is the dependent variable, and x is the independent variable.
So, if b is the independent variable, it means that we have to solve the expression for r.
To do so, we perform the following steps: start with

Add 12 to both sides

Divide both sides by 4:

So, we wrote the expression in the form
, which means that r is the dependent variable and b is the independent variable, as requested.
Answer: 154 sq cm
Step-by-step explanation:
40 years if the rate stays the same