Answer:
y=7
Step-by-step explanation:
The two given angels are congruent so they must be equal in measure.
Set them up equal and find y.
8y = 5y + 21, subtract 5y from both sides
8y -5y = 21, combine like terms
3y = 21, divide both sides by 3
y = 7
B is false, since by the inclusion/exclusion principle,

By independence, we have
, which is zero if either of
or
is 0, which isn't guaranteed.
-4
Step-by-step explanation:
-4 show the number of wveryshaoaknd
Answer:
negative
Step-by-step explanation:
b is a negative number because it is less than -1, so b/5 is a negative number because negative/positive = negative