The cost for an upcoming field trip is $15 per student. The cost of the field trip C, in dollars, is a function of the number of students, x . a) Write a function rule to represent the situation.

b) What does C ( 4) = 60 mean in the situation?

a negative exponent is translated as follows:

so, we have

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8  

answer: the four apples you took away.

step-by-step explanation:

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation: