How do you answer these?

First, add all of them up to find the total number of chips, in this case: 10. Then, select the number of chips in the group you want to be selected (in this case purple) 5. take that number and put it over the total number, so the probability is: 5/10, which reduces to 1/2. Since the chip is not replaced, the new total number of chips in the jar is 9. since there is only 1 black chip in the entire bag, the probability of pulling the black chip is 1/9.

Step-by-step explanation:

the correct is answer is a 9-sided polygon!

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'.