Two buses leave school moving in opposite directions. After 15 minutes, they are both 10 miles away from the school. Which statements correctly describe the motion of the buses? The velocity of the buses is equal.
The average speed of the buses is equal.
The average speed of the buses is not equal.
The velocity of the buses is not equal.
Both buses move with constant velocity the entire trip.

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.

-2x-4

step-by-step explanation:

60: 45 =12: 9 =4: 3 so the answer is 4: 3