NEED HELP ASAP Priya creates a scatter plot showing the relationship between the number of steps she
takes and her heart rate. The correlation coefficient of the line of best fit is 0.88.
A) Are they correlated? Explain your reasoning.
B) Do either of the variables cause the other to change? Explain your reasoning.

Geometry paper. i don't know how to do the rest. questions 5. 8. 9. and 10.

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²