It's very simple
1m=100cm
4m=4×100=400cm
The output k at input t = -7 is -89
Step-by-step explanation:
In order to find the value of a expression on given number, we put the number in given expression in place of independent variable
So,
Given expression is:

It is given that the value of t has to be -7
so putting t=-7 in the expression

Hence,
The output k at input t = -7 is -89
Keywords: Expressions, input, output
Learn more about expressions at:
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Answer:
4.1
Step-by-step explanation:
I used a calculator I hope this helps
Answer: 0.421, 0.422, 0.423, 0.43, 0.434
Step-by-step explanation:
-7 = 1 + 2/3n
Subtract 1 from both sides:
-8 = 2/3n
Multiply both sides by 3:
-24 = 2n
Divide both sides by 2:
N= -12