The interior angles of a triangle are
(
5
x
+
3
y
)
∘
,
(
3
x
+
20
)
∘
,
and
(
10
y
+
30
)
∘
(5x+3y)∘,(3x+20)∘, and (10y+30)∘
, where
x
x
and
y
y
are positive integers. what is the value of
x
+
y
x+y
?

If you roll two fair dice (one black die and one white die), in how many ways can you obtain a 4 on at least one die?

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?