Which set of coordinates describes a function?

For Sunday’s debate tournament, Ellie ordered 3 cookies for each student participant and a tray of 30 cookies for the sponsors’ hospitality room. This relationship can be expressed by the function f(s) = 3x + 30, where s is the number of student participants. Which is the dependent quantity in this functional relationship?

Find the median of these numbers: 4, 2, 7, 4, 34

 If f(x)=4x-3 and g(x)=4+5x, then f(x)+g(x) is equal to

 Evaluate f(x)=x^2+3x+1, when x=8

 The interest payable on a deposit of Php250 at 5.5% simple interest is:

It is the temporary borrowing of money which is to be paid on the required date or time period.

 Find the probability of rolling a 7 on a single die.

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

Failing to reject the null hypothesis when it is false is:

Which statistical test is used to identify whether there is a relationship between two categorical variables?

The function for the height of an object dropped from a 100 meter tall platform at a time of t seconds is approximated  by s(t)= -5t²+100. What is the height of the object after 4  seconds. 

It is a set of ordered pairs. The domain of a relation is the set of first coordinates. The range is the set of second coordinates.

What is the remainder when 2²⁰¹ is divided by 3?

 The MODE of a data set is...

 It is used to determine if the graph is a function or not.

The sum of a number and 6 is 8 more than twice the number. Find the equation thatcould be used to find this number x.

What does D represent in Roman numeral system?