Answer:
i do not understand
Step-by-step explanation:
Answer: Length = 28cm
Width = 7cm
Step-by-step explanation:
Let the width be represented by x.
Since the length is four times its width. Therefore, the length would be:
= 4 × x = 4x
The perimeter of a rectangle is calculated as:
= 2(length + breadth)
Therefore, 2(4x + x) = 70
2(5x) = 70
10x = 70
x = 70/10
x = 7
Therefore, width = 7cm
Length = 4x = 4 × 7 = 28cm
Answer: 
Step-by-step explanation:
Given
Raju buy an old car for 
He spent
on its repair
The selling price of the car 
So, the cost price is

Here, 
Gain percent is

Answer:
15 candles and 6.72 ounces left over.
Step-by-step explanation:
Jerod has the amount of beeswax = 132.72 ounces
Jerod is making candles from beeswax.
one candle uses the amount of beeswax = 8.4 ounces
Total candles can be made from total beeswax = 
= 15.8
With 132.72 ounces wax 15 candles were made.
In order to calculate the left over wax we calculate the amount is used in 15 candles
= 8.4 × 15 = 126 ounces
Left over wax = 132.72 - 126 = 6.72 ounces
Therefore, 15 candles can be made and 6.72 ounces wax would be left over.