Answer:
42
Step-by-step explanation:
to find out the triangle do this formula:
bxh/2
3.5x3=10.5
3.5x3=10.5
21
To find out rectangle do:
lxw
7x3=21
21+21=42
Answer:
60 years
Step-by-step explanation:
<u />The greater change is represented by the absolute magnitude
|-34| = 34
|-67| = 67
67 > 34
<u><em>-67 represents the greater change</em></u>
Volume = area of cross-section x length
= 7 1/3 x 2
= 22/3 x 2/1
= 44/3
= 14 2/3
= 14.666666667
V = 44/3 (or 14 2/3, double of 7 1/3)
Hope this helps!