Which of the following equations has infinitely many real solutions? A. 7x + 1 = 7x − 1 B. 7(x − 6) = 7x − 42 C. 7(x − 6) = 7x + 42 D. 7x + 1 = x − 1

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?

Precalculus question, image attached.