There 3 of them
.....................
Data:
P (Principal) = $1500
I (Simple Interest) = ?
t (time) = 5 years
r (percentage rate) = 4% = 0.04
Formula:

Solving (1) <span>Find the interest earned.</span>



Solution (2) <span>Find the balance of the account.
</span>The future value, (Account), of a loan is given by the equation: A = P + I


It is given in the question that, a rocket travels 2.8x10^4 km h^-1.
It means in one hour, the rocket travels

And we have to find how much the rocket travels in 5 hours, and for that we have to do multiplication, that is

Answer:

Step-by-step explanation:
Let
c -----> the additional amount (in dollars) David will spend
we know that
The word " at most" in this context means "less than or equal to"
The amount David has spent plus possible additional amounts he will spend must be less than or equal to $39
so
The inequality that represent this situation is

solve for c
subtract 22 both sides


The maximum amount he could spend is $17