A contractor is preparing a bid to install swimming pools at a new housing addition. The estimated time to build the first pool is 31 hours. The contractor estimates an 80 percent learning rate. Using POM for Windows or OM Explorer, how long do you estimate the time required to install the seventh pool? The time required to install the seventh pool is hours. (Enter your response rounded to two decimal places.) What is your estimate of the total time for all seven pools? The total time for all seven pools is hours. (Enter your response rounded to two decimal places.)