Area of rectangle= base x height
6x4=24
Area of triangle= 0.5 base x height
We have the height but we don’t have the base, to calculate the base we subtract 10-6 which equals to 4
0.5 x 4 x4 =8
Area of a semicircle= o.5 x pi x r^2
We have the diameter and to find the radius we divide it by 2
4/2 = 2
0.5 x pi(or 3.14) x 2^2
=6.28
Total area = 24 + 8+ 6.28 =38.28cm^2
Answer:

Step-by-step explanation:
Given

Represent charges with d and time with h
So:
when 
Required
Determine the formula

In other words,

Convert to an equation

Where
k = constant of proportion
Substitute values for Charges and Time

Solve for k


Substitute 15 for k in 


<em>The above formula models the situation</em>
Answer:
8
Step-by-step explanation:
The median is 8 since 8 is the most common number
Answer:
112 hours and 50 mins
Step-by-step explanation:
Numbers of mins worked in a day = 7×60+30 =450 mins
Now number of mins worked in 15 days = 450×15
= 6750 mins
to convert mins into hours divide by 60
6750÷60 = 112.50
that means total number of hours worked in 15 days = 112 hours and 50 mins