calibaby1220
15.07.2019 •
Mathematics
Kala is mailing packages. each small package costs her $2.30 to send. each large package costs her 2.90. how much will it cost her to send 5 small packages and 7 small packages?
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Ответ:
Ответ:
When light strikes an object, its rays can be either absorbed or reflected. A solid black object absorbs almost all light, while a shiny smooth surface, such as a mirror, reflects almost all light back. When reflected off a flat mirror, light bounces off at an angle equal to the angle it struck the object.
Step-by-step explanation: