It should be d. , Because if you take the equation 3x+y=9, and make it slope intercept form, it would be y= -3x+9. -3 is the slope, and 9 is the y intercept. D is the answer.
Answer:
$93.75
Step-by-step explanation:
The trip back the boat will travel only 30 miles because the trip doubled the hrs.
The formula is 4/3πr^3
4/3 (3.14)(3)^3
answer: 113.09
4.05-2.74=1.31
The difference is 1.31 pounds.