Maria has 90$ in a saving account. The interest rate rise a 5% compounded annually. to the nearest cent, how much will he have in 3 years

$104.19

Step-by-step explanation:

We will use the compound interest formula to solve this:

P = initial balance

r = interest rate (decimal)

n = number of times compounded annually

t = time

First, lets change 5% into a decimal:

5% -> -> 0.05

Now, plug the values into the equation:

After 3 years, Maria will have $104.19

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions