The worth of Sarah's investment when she is 68 is $14,728.51.
<h3>What is the worth of the investment?</h3>
The formula that can be used to determine the worth of the investment is:
FV = P (1 + r)^n
FV = Future value
P = Present value
R = interest rate
N = number of years = 68 - 18 = 50
$500 x (1.07)^50 = $14,728.51
To learn more about future value, please check: brainly.com/question/18760477
Answer:
42
Step-by-step explanation:
3x^2 +5x
Let x=3
3(3)^2 +5(3)
3*9 +15
27+15
42
Answer:
57.5% of the students polled prefer pizza
Step-by-step explanation:
The small sign's perimeter is 36 inches
Step-by-step explanation:
The scale factor between two figures is obtained by:

So,
We know that

Putting the values in the above equation of scale factor we get

Cross multiplication

Dividing both sides by 5

Hence,
The small sign's perimeter is 36 inches
Keywords: Scale factor, Ratio
Learn more about scale factor at:
#LearnwithBrainly
A rectangle has four sides, two equal to the width and two equal to the length. So, the perimeter is

If we know that the width is 5, and the perimeter is 125, we have

In your case, the unkown is called x, but the concept is the same:

where x is the length of the rectangle.