Answer:
The answer for this question is C, E and F .
Step-by-step explanation:
Given that the length is 3 times the width. So firstly, you have to find the expression of length :

Let width = w,


Next, the perimeter of rectangle is P = 2(length+width) so you have to substitute the expression into the formula :

Let length = 3w,
Let width = w,




Answer:
2/15
Step-by-step explanation:
2/3 - 8/15
Get a common denominator
2/3 *5/5 = 10/15
10/15 - 8/15
2/15
Markdown is the amount of money that is subtracted from the original price.
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
Exact Form:
x
=
−
7
8
Decimal Form:
x
=
−
0.875
Step-by-step explanation: