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Leon knows that his first four test grades were 78 86 82 and 88 Use the formula x =x 1 +x 2 +...+x n n
Leon knows that his first four test grades were
78
86
82
and 88
Use the formula x
=x
1
+x
2
+...+x
n
n
x
=
x
1
+
x
2
+
...
+
x
n
n
to find Leon's grade on the fifth test if his test average is 83.8
83.8
.
.
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