Function c is defined by the equation c(n)=50+4n. It gives the monthly cost, in dollars, of visiting a gym as a function of the number of visits, n. Find value of c(7)

Plug in n = 7 in the equation c(n) = 50 + 4n, to get c(7) = 50 + 4\cdot 7 = 50 + 28 = 78.
So, when the number of visits is 7, the monthly cost in dollars will be $78.
I found an answer from web.stanford.edu
COMPUTER AGE STATISTICAL INFERENCE
next to the number, the page number of the referenced location is given in parenthesis. ... interest, perhaps the automobile accident rates in the n D 50 states. The mean ... We might instead try a quadratic regression y D Oˇ0 C Oˇ1x C Oˇ2x2, or a cubic ... This brings us to an aspect of Fisherian inference neither Bayesian nor.
For more information, see COMPUTER AGE STATISTICAL INFERENCE
I found an answer from stackoverflow.com
PHP - Notice: Undefined index: - Stack Overflow
Before you extract values from $_POST , you should check if they exist. You could use the isset function for this (http://php.net/manual/en/function.isset.php).
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I found an answer from quizizz.com
Unit 4 Lesson 11 Practice Problems Quiz - Quizizz
C gives the cost, in dollars, of a cafeteria meal plan as a function of the number ... is represented by the equation C(n)= 4+3n. Find C(n)=31. answer choices. 8. 9.
For more information, see Unit 4 Lesson 11 Practice Problems Quiz - Quizizz