150 = 5 classes
1 class = 30
Answer:
The right answer is Option 2:

Step-by-step explanation:
Point-slope form of equation of a line is given by:

Here m is slope of the line and (x1,y1) is the point from which the line passes.
Given
Slope = m = -3/4
Point = (x1,y1) = (2,-6)
We simply have to put these value into the general form of equation of line in point-slope form

Hence,
The right answer is Option 2:

<span>After 1 hour, the diving bell was -1/2 mile relative to sea level.
Since the rate of decent is constant, we can use two ratios to represent the depth at 2 different times. To make things easier to write, I'll use decimals to represent time and depth.
-.75 / 1.5 = x / 1
Now solve for x
-0.5 = x
So after 1 hour, the diving bell was -1/2 mile relative to sea level.</span>
Answer:
4
Step-by-step explanation:
4X7 =28
4X2 =8
28-8 =20/5
=4
It would be subtraction I think