Complete the Car class shown below. A Car has a fuel tank level, and a miles-per-gallon value. Assume that all cars have 12-gallon gas tanks. public class Car
{
// declare your constants and instance variables here

// postcondition: all instance variables are initialized
public Car(double mpgValue, double gallons)
{

}

// postcondition: the fuel level is increased by the amount given by the parameter
public void addFuel(double gallons)
{

}

// postcondition: the fuel tank level is decreased by the amount of gas
// that it would take this Car to drive the number of miles given by the parameter
// The fuel level cannot be negative.
public void drive(double miles)
{

}

// other methods not shown
}

Sorry do not know but if you need with math, i will

Answerdata link;

I’m not sure but i need to know too

The answer is c. 36======analyzing the for-loop, we see that the control variable, k, starts at 0 and increments by after every loop iteration. the condition  tells us that the loop will stop when k is above 7; in this case, when k is 8.0 1 2 3 4 5 6 7 are the values for k that will be used. each number is for each iteration; therefore, the for-loop will have 8 iterations in total.the code inside the loop itself goes like this: 1st iteration (k=0)starting with sum=0, val=1    means that add  to  .since sum is 0 and val is 1, 0 + 1 = 1. the new value of sum is 1.    means to increment  by 1.since val is 1, the new value of val of 2.end of iteration with  k=0; k is increased by one to become  k=12nd iteration (k=1)starting with sum=1, val=2    ======let us establish a pattern. this is moreso logic than programming: we can  rewrite so that we have the elements from the previous iteration. the 1 came from 0 + 1 before. so we can write it as      .and if we did the third iteration, by the end, sum would look like      notice how the number of plus signs is equal to the iteration you are on (which is just k+1), and what is being added is increasing by one each time.  for example, the third iteration (k=2)  ends up with  with 3 plus signs.the second iteration (k=1) ends up with  with two plus signs.the first iteration (k=0) ends up with  with one plus sign.this is a pattern. the nth iteration will have n plus signs.since we established before that there are 8 iterations of this loop in total, the value of sum at k=7 (the 8th and last iteration) will have sum with 8 plus signs.    so the value of sum at the end of the loop is 36.