Question

Please help I need help with this math problem if you help I'll give a total of 40 points make sure

Answer 1

Step-by-step explanation:

First problem:

D = 10 inches

f/number = 9

F = ?

if f=F÷D, F=f×D

so F=9×10=90

Second problem:

300 = C+273

-C= -300+273

C= 27

Answer 2

Answer: In what part do you need help with?

Step-by-step explanation:

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