What is 8 squared, negative 4, and 1.5 from least to greatest?

-4, 1.5, 8 squared.

Step-by-step explanation

All of these numbers except the -4 are positive. Negative numbers are ALWAYS smaller than positive numbers. So, -4 is without a doubt going to be the smallest.

To square a number, you multiply a number by itself. 8 x 8 = 64.

In the decimal 1.5, the number in the ones place is a 1. Is 64 greater than one? Of course it is. So, 8 squared which is 64 is greater than 1.5

You can check to see that 64 is greater by subtracting 1.5 from 64. The answer is a positive number.

So, the answer from least to greatest is: -4, 1.5, and then 8 squared.

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'.