Question 14(multiple choice worth 1 points) (07.06 mc) an unknown number x is at most 30. which graph best represents all the values of x? number line graph with closed circle on 30 and shading to the right. number line graph with closed circle on 30 and shading to the left. number line graph with open circle on 30 and shading to the left. number line graph with open circle on 30 and shading to the right

Number line graph with closed circle on 30 and shading to the left

Step-by-step explanation:

we know that

The algebraic expression of the phrase " An unknown number x is at most 30" is equal to

The solution is the interval ------> (-∞,30]

All real numbers less than or equal to 30

Number line graph with closed circle on 30 and shading to the left

see the attached figure

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'.