a.
(2+3)×6=30
b.
12×(7+8)=180
c.
15×(2+3×7)=345
Answer:
(2+3) x 6 =30
12 x (7+8) = 180
15x (2+(3x7)) = 345
Step-by-step explanation:
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The mean for Stem is 2.5
The mean for Leaf is 81.25
21.4m
Circumference : x diameter
is approximately 3.142
3.142 x 6.8 = 21.3656
Nearest tenth = 21.4m
