Convert percent to decimal by moving the percent sign two places to the left.
12% => 0.12
'Of' in math means multiply: 0.12 * 30 = 3.6
3.6 is the answer.

Amplitutde:

Normally for sinx amplitude is 2 (1 +1). In the case when it is half sine amplitude is halved, therefore 0.5 +0.5 = 1 Paramers alpha = 2x does not matter because it only stretches the graph horizontally.
The question which ask to select among the choices the equation that Alejandria should write to represent the new line where as the equation she wrote is y-3=x-10 and the answer would be that the form in this equation is y=x-13 and if the slope is 2 then it is y=2x-13
Answer:
b
Step-by-step explanation:
The respiratory system basically help us breathe.