Answer:
a.(+4) and (+2)
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Answer:428.67
Step-by-step explanation:
πr (r+square root(h2+r2) plug in the numbers
Answer: NA and Rb and there are 20 protons in calcium!
Step-by-step explanation:
Answer: plus
Step-by-step explanation:
ANSWER

EXPLANATION
The area of the two tra-pezoidal faces

The area of the 5 by 6.4 rectangular face

The area of the two square faces

The area of the 9 by 5 rectangular face is

The surface area of the design is:
