B. Explain the steps to solve your equation from question 2a. 3. A. If Lydia wants to text at least 8 characters per second, like James, then the equation 10r + 4 = 8 could be used to model this situation. Solve this equation for r.

B. Explain what the variable r represents in the equation given in question 3.

4. Consider the equation 8x + 5 = 37. Write a real-life scenario that this equation could model.

Max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Answer for 10 points show work you guys in advanced < 3

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.