If f(x)= 6x-4, what is f(x) when x=8

Step-by-step explanation:

We substitute the value of x = 8 where we see the variable x in the given function.

The funcion is:

substituting x = 8

solving operations, remembering that multiplications are resolved first than substractions.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour