The probability that someone owns an iphone is 62%. the probability that someone owns an apple watch is 15%. the probability someone owns both is 8%. what is the probability that someone owns an iphone or an apple watch?

What is the rescursive formula for this geometric sequence? 7, -14, 28, -56

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.