Ab has end points at a (0, 10) and b (0, 0) . a transformation is performed on ab and the image is a'b' with end points a' (0, 10) and b' (0, 20) .

what transformation was preformed on ab ?

reflected across the x-axis

rotated 180° about point b

rotated 180° about point a

translated up 10 units

Measures of the angle of r, 31 s (x+4) t (3x+9)

Explain how you can use the associative property to evaluate (7x50)x4.

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?