Ineed to find the average rate and initial value from this table.

Average rate of change = 9

Initial value = 12

Step-by-step explanation:

The table represents a function that gives you the rent value in dollars (y) for a given number of days (x). The input, or x, is the number of days. The output, or y, is the cost in dollars.

For example, for 0 days, it costs $12.

For 1 day, it's $21.

For 4 days, it's $48.

The initial value is the value of the function at x = 0. Look at the table. The value of the function is the value of y. You need the value of y for x = 0. From the table you see that y = 12 when x = 0, so the initial value is $12.

To calculate the average rate of change, pick any two points.

Let's pick

x = 0 with y = 12, and

x = 3 with y = 39.

To find the average rate of change, divide the difference in y by the difference in x for the two points we picked.

For the two points we picked, the difference in y is 39 - 12 = 27.

The difference in x is 3 - 0 = 3.

Now we divide the difference in y by the difference in x.

average rate of change = 27/3 = 9

The average rate of change is 9.

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

i'm sorry i don't know

step-by-step explanation: