Which type(s) of symmetry does the figure have?

a:
rotational and reflectional

b:
reflectional

c:
rotational

d:
none of these

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Use the data on the dot plot to answer the question. how many people read for more than three hours last week? i'm on a unit test review