Answer:
2x+15y=2960
Step-by-step explanation:
34.1754 is the answer because if 50 km an hour is 31.0685 just add the other km's
Answer:

Step-by-step explanation:
use y = mx + b where:
y = y-coordinate = 6
m = slope = -1/4
x = x-coordinate = -2
b = y-intercept = what we're solving for to complete the equation
plug the values into the equation
multiply
and 2
subtract
from both sides

now we plug m and b into the equation and leave x and y as variables to get the final equation:

Can u send the question to be more clear
Melissa could clean one sixth of the area in half and hour because you divide by 2 since 60 divided by 2 is 30 and she has half as much time