How many students would be leaving on a field trip if 15 students were leaving out of a total of 210?

 195

Step-by-step explanation:

I did the 210 students (the total of students on the field trip) subtracted by the 15 students who were leaving.  In the end I got 195.

2.56 is the width of the garden

step-by-step explanation:

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.