An irrational number is a number that can't be written as a simple fraction such as pi because you can't turn pi into a fraction.
Answer:
7
Step-by-step explanation:
7 is approximate to
because 7 is
, and 49 is close to 47
The area is 20
The height is 5
The volume is 60
The surface area is 94
300 messages would have to be sent or received in order for the plan to cost same each month.
Step-by-step explanation:
Given,
Cost per month = $30
Per text sent or received charges = $0.10
Let,
x be the number of texts sent or received.
A(x) = 0.10x+30
A comparable plan costs = $60 per month
Text messages are unlimited.
B(x) = 60
For the two plans to cost equal;
A(x) = B(x)

Dividing both sides by 0.10

300 messages would have to be sent or received in order for the plan to cost same each month.
Keywords: function, addition
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