Two water pumps are used to drain a swimming pool. pump a can drain the pool in 45 minutes, and pump b can drain the same pool in 35 minutes. how many minutes will it take to drain the pool using both pumps at the same time?

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.

Julie multiplies 6.27 by 7 and claims the product is 438.9 .explain without multiplying how you know juliesanswer is not correct.find the correct answer