Olivia's cell phone bill last month was $125. This month her bill is $85. What is the percent of change in Olivia's bill?

32%

Step-by-step explanation:

Olivia's cell phone bill last month was $125. This month her bill is $85. What is the percent of change in Olivia's bill?

The formula for Percent change =

Amount of change/Original amount × 100

Amount of change = Original amount = New amount

Original Amount/bill = $125

New amount/bill = $85

= $125 - $85

= $40

Percent change = $40/$125 × 100

Percent change = 0.32 × 100

Percent change = 32%

Therefore, the percent of change in Olivia's bill is 32%

4

step-by-step explanation:

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'.