Answer:B
Step-by-step explanation:
If the air is colder than the water you would have -2-9 because if you keep,Change and flip it it it is -2+-9 which is -11.
14. 75 105
105 75
16. 155 25
155
17. 127
18. 55 125 125
19. 115 140 40
2 cm. because you would subtract 5 and 3.
Answer:
Numbers of students at a primary school before= 240
Number of increased students =42
Again,
Increased number of students in percent(%)= 42/240×100%= 17.5%
Therefore 17.5% students are increased this year.
X = 20
This is an isosceles triangle so third angle is also 2x because of symmetry.
Angle sum = 5x + 2x + 2x = 9x = 180 degrees
