Tim wants to collect 400 stickers. if he makes pages of 10, how will he know when he has 400 stickers?

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?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Find the length of the radius of a circle with the center at -7+2i and a point in the circle at 33+11i