What is 3/4 - 7/12? Its on my exam so I need it NOW please

Adding and subtracting matricesfind the value of each variable. x = and y = would

Aflower has 26 chromosomes. to create a new flower, how many would a sperm cell have what is called?

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?