Let the number of minutes be x. $35.99 is fixed price and does not depend on the number of minutes x. Each minute costs $0.21 so it depends on x and we have 0.21x in the function. However, 250 minutes are already included and should not be included in x. Therefore, the function that represents the monthly cost looks like this: f(x) = 35.99 + 0.21 * (x - 250)
Jake wanted to measure the height of the Great Sphinx of Giza. He placed a mirror on the ground and then walked backwards until he was able to see the top <span>of the statue in the mirror. If his eyes were 5.5 feet above the ground, the statue is 87 ft. The answer is letter B.</span>