It’s on open dot because it doesn’t include the 4 and it shades all the numbers greater then 4 (so it goes to the right).
A. square root property

it has one value with x which is x^2 and it cn be easily solved without having to factorise, quadratic formula cant be used as it need ax^2+bx+c=0 format
B. factorising

i just felt like this was easier to factorise than the other 2 options left
C. Completing the square

same reason personal preference
D- Quadratic

the 17 kinda threw me off and i didnt wanna get on factorising or doing completing the square so quadratic formal
Answer:
30 cm
Step-by-step explanation:
2 * 15: 5 * 15
30:75
The answer to your question is 200.
100%-40%=60%
60%=120 students
60%÷3=20%
120÷3=40
20%=40
20%X5=100%
40X5=200