I draw one card from a deck and look at it. I tell you it is red.

What is the probability it is a heart?

And what is the probability it is red, given that it is a heart?

It is saturday morning and jeremy has discovered he has a leak coming from the water heater in his attic. since plumbers charge extra to come out on the weekends, jeremy is planning to use buckets to catch the dripping water. he places a bucket under the drip and steps outside to walk the dog. in half an hour the bucket is 1/5 of the way full. what is the rate at which the water is leaking per hour?

Find two numbers if their sum is 91 and the ratio is 6: 7?

Find the distance between the point (-3,-4), and (see the picture below)