Katie made two pies for bake sale. One was cut into three equal slices

15 slices

Step-by-step explanation:

The given question is "Katie made two pies for the bake sale one was cut into three slices and the other was cut into five slices what is the least common number of slice each pie could have ."

One piece is cut into 3 slices

Other piece is cut into 5 slices

We need to find the least common number of slice each pie could have . It means we need to find LCM of the two numbers.

LCM of 3 and 5 = 15

Hence, 15  slice each pie could have .

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'.