Answer:

Step-by-step explanation:
Given



Find the length of HG
First, it should be noted that the displayed figure is a trapezium
<em>The area of a trapezium is calculated by multiplying the sum of parallel sides by half its height;</em>
In this case;

Substitute the values of Area, HE and EF


Divide both sides by 4


Subtract 12 from both sides



<em>Hence, the length of HG is 5mm</em>
Answer:
20x
Step-by-step explanation:
20 times the number of weeks
9514 1404 393
Answer:
D. 5, 7, 12 cm
Step-by-step explanation:
In order for sides lengths to be able to form a triangle, the sum of the shortest two must <em>exceed</em> the longest. That is the case for all except D.
5 cm + 7 cm = 12 cm . . . . . is <em>not greater than</em> 12 cm
Answer:
$19.55
Step-by-step explanation:
6.75 X 10 to the tenth power