Hello! So the formula for compound interest is P(1 + r)^t, where r = rate, P = principal, and t = time (years). C is out, because you multiply the rate and principal together to get the price, not add. You raise the decimal to a certain power, based on the amount of years. You add 1 to the rate. 5% in decimal form is 0.05 and you must add 1 to the amount, which eliminated B. The only answer that works is A, because it shows the correct formula. The answer is A.
Answer:
The answer is B and C
Step-by-step explanation:
Answer:
Equation of the given straight line is x = -8
Step-by-step explanation:
By the given information we have,
The line is vertical that means it's slope is not defined therefore the equation of the line is given by, x = c where c is the x coordinate.
Therefore x = -8.
Answer:
The answer is y= 100 +15x
Step-by-step explanation:
You start with a service fee of $100
$15 per hour
x because the amount of hours can vary
y which is the total cost
y= 100+ 15x
