Assume Charles charges $7*3=$21 if he babysits for 2,5 hours (that is 2 and a half hours).

That is we are not considering Charles babysitting exactly 1, 2, 3 or 4 hours, but also in between times.

then we can write the following piecewise function to describe the situation:

f is a function from (0, 4] to {$7, $14, $21, $28}

Answer:

124

Step-by-step explanation:

Hope it helps!

**Answer:**

the sum is 7

**Step-by-step explanation:**

ik this because i used to be in kindergarten.

**Answer:**

**Step-by-step explanation:**

1a. 7000m 1b. 10mm

2a. 1000cm 2b. 2m

3a. 6km 3b. 3km

4a. 2km 4b. 9m

5a. 6cm 5b. 7m

6a. 9cm 6b. 9km

7a. 4km 7b. 5km

8a. 8km 8b. 30mm

9a. 70mm 9b. 3m

10a. 2cm 10b. 10cm