This is how I understood the question
Hope I helped!
Answer:
3333333337
Step-by-step explanation:
The line graph is unsuitable for her purposes because it does not show adequately the comparison of the expenses.
Line graph is used to show the increase/decrease of a particular variable.
Bar graph is a more adequate format to create a visual representation.
Answer:
Since you are to calculate the value of x, the first thing to do is to collect the like terms, i.e bring all the families of x together.
which implies : x -12x +7x = 7 + 4
-4x = 11
Divide both sides by -4
therefore : x = 
Step-by-step explanation:
Answer:
DE = 4 units.
Step-by-step explanation:
By the chord intersection theorem:
BE * CE = DE * FE
But FE = DE + 5 so:
BE * CE = DE * (DE + 5)
6 * 6 = DE^2 + 5DE
DE^2 + 5DE - 36 = 0
(DE + 9)(DE - 4) = 0
So DE = -9 or 4
It can't be negative so DE = 4.