Last month, my house used 1,740 kilowatt-hours of electrical energy,
and the part of my bill that charged for the electricity was $226.20 .
For the same month, my brother in Boston used 1,175 kilowatt-hours
of energy, and the energy part of HIS bill was $199.75 .
Which of us gets the better deal on his electrical energy ?
Answer:

Step-by-step explanation:



Answer:
$420
Step-by-step explanation:
The formula for simple interest is i = prt, where p is the principal, r is the annual interest rate expressed as a decimal fraction, and t is the number of years.
Here p = $2,000, r = 0.07 and t = 3 yr, and so
i = ($2,000)(0.07)(3) = $420 was the amount of interest earned.
Thank you, you’ll motivate me to work out :)
Answer: The relationship within the circle is that TU square is equal to ST times TR.
Therefore, we can write and solve the following equation.
TU^2 = 4(9)
x^2 = 36
x = 6
The length of side TU is 6.