An octagon has a perimeter of 28 units. What is the perimeter of the image of the octagon after the translation
(x, y) —> (x-7,y+6), a rotation 90° clockwise, and a reflection across the y-axis?

This is different from the first one can someone me

At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.

The deepest part of the swimming pool is 12 feet deep. the shallowest part of the pool is 3 feet deep. what is the ratio of the deeply of the deepest part of the pool to depth of the shallowest part of a pool?