Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
<u>Algebra I</u>
- Slope Formula:

Step-by-step explanation:
<u>Step 1: Define</u>
Point (2, -1)
Point (6, -1)
<u>Step 2: Find slope </u><em><u>m</u></em>
- Substitute:

- Add/Subtract:

- Divide:

Answer:
40
Step-by-step explanation:
First we need to subtract the 50 students enrolled in English class.
150 - 50 = 100
Next, let's add the mathematics students and the physics students.
80 + 60 = 140
Then we subtract the total amount of mathematics and physics students by the total number of students.
140 - 100 = 40
Therefore, there are 40 students who take both mathematics and physics.
You can us calculatorsoup online to find answers.
No.....the correct calculation would be : 27 x 5...then add 25