Peter has two 49-cent stamps, one 5-cent stamp, and twenty 1-cent stamps. How many different postage amounts (that is worth at least one cent) can Peter make exactly?

Polygons efgh and e′f′g′h′ are shown on the coordinate grid: what set of transformations is performed on efgh to form e′f′g′h′? a. a translation 1 unit to the left followed by a 90-degree counterclockwise rotation about the origin b. a translation 1 unit to the right followed by a 90-degree counterclockwise rotation about the origin c. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the right d. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the left

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =

Triangles abd and ace are similar right triangles. witch ratio best explains why the slope of ab is the same as the slope of ac?