**********for question C use 75%***********

Wake County has a special emergency rescue team. The team is practicing rescuing dummies from a smokefilled building. The first time, the team took 660 seconds (11 minutes). The second time, it took 495 seconds (8.3 minutes). Click the icon to view the learning curves table. a. The estimated learning rate is 75 %. (Enter your response as a whole number.) b. Suppose that the team's learning rate for the rescue exercise is 75%. times until its time is less than 196.02 seconds. (Enter your response The team needs to repeat the exercise as a whole number.) c. (**) How long will it take the emergency team to perform its 20th rescue if the learning rate is 80%? 90% learning Unit number no 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 70% learning nb 1.000 0.700 0.568 0.490 0.437 0.398 0.367 0.343 0.323 0.306 0.291 0.278 0.267 0.257 0.248 0.240 0.233 0.226 0.220 0.214 0.209 0.204 0.199 75% learning nb 1.000 0.750 0.634 0.563 0.513 0.475 0.446 0.422 0.402 0.385 0.370 0.357 0.345 0.334 0.325 0.316 0.309 0.301 0.295 0.288 0.283 0.277 0.272 80% learning nb 1.000 0.8 0.702 0.640 0.596 0.562 0.534 0.512 0.493 0.477 0.462 0.449 0.438 0.428 0.418 0.410 0.402 0.394 0.388 0.381 0.375 0.370 0.364 85% learning nb 1.000 0.850 0.773 0.723 0.686 0.657 0.634 0.614 0.597 0.583 0.570 0.558 0.548 0.539 0.530 0.522 0.515 0.508 0.501 0.495 0.490 0.484 0.479 1.000 0.900 0.846 0.810 0.783 0.762 0.744 0.729 0.716 0.705 0.695 0.685 0.677 0.670 0.663 0.656 0.650 0.644 0.639 0.634 0.630 0.625 0.621 23 67890HQu 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 0.398 0.367 0.343 0.323 0.306 0.291 0.278 0.267 0.257 0.248 0.240 0.233 0.226 0.220 0.214 0.209 0.204 0.199 0.195 0.191 0.187 0.183 0.180 0.177 0.174 0.475 0.446 0.422 0.402 0.385 0.370 0.357 0.345 0.334 0.325 0.316 0.309 0.301 0.295 0.288 0.283 0.277 0.272 0.267 0.263 0.259 0.255 0.251 0.247 0.244 0.562 0.534 0.512 0.493 0.477 0.462 0.449 0.438 0.428 0.418 0.410 0.402 0.394 0.388 0.3881 0.375 0.370 0.364 0.359 0.355 0.350 0.346 0.342 0.338 0.335 0.657 0.634 0.614 0.597 0.583 0.570 0.558 0.548 0.539 0.530 0.522 0.515 0.508 0.501 0.495 0.490 0.484 0.479 0.475 0.470 0.466 0.462 0.458 0.454 0.450 0.762 0.744 0.729 0.716 0.705 0.695 0.685 0.677 0.670 0.663 0.656 0.650 0.644 0.639 0.634 0.630 0.625 0.621 0.617 0.613 0.609 0.606 0.603 0.599 0.596