Abhasra and Ming each improved their yards by planting flowers and ornamental grass. They bought their supplies from teh same store.

Abhasra spent $60 on 7 flowers and 2 bunches of ornamental grass.

Ming spent $40 on 3 flowers and 8 bunches of ornamental grass.

Find the cost of one flower and the cost of one bunch of ornamental grass.

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'.