Answer:
x = 77/10
Step-by-step explanation:
Hope this helps!
For number 3 the problem solving it can be What is the difference between the T REX and the triceratops
The last one u could put Add up all the dinos and what will u get.
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3x - 45 = 2x + 5
3x - 2x = 5 + 45
x = 50
4y - 1 + 2x + 5 = 180
4y + 2(50) + 4 = 180
4y = 180 - 4 - 100 = 76
y = 76/4 = 19.
y = 19
Surface area: 765.6 cm^2
Volume: 94.2 cm^3
