How long does a 420-miles trip take moving at 50 miles per hour?

a. 4 hours
b. 6 hours and 24 minutes
c.8 hours and 24 minutes
d. 8 hours and 30 minutes

D

Step-by-step explanation:

420/50= 8.4

which means 8 hours and 40 min so I'm going to say D b/c it the closest to my answer

2/3

step-by-step explanation:

the slope of a line is equal to the rise/run. in this case the line rises 2 units for every +3 units it moves

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!