Answer:
$81.60
Step-by-step explanation:
A 20% markdown means that the chairs were sold at 80% of the original cost.
Original cost = $102
markdown = 20%
Cost after markdown = original cost* (1-markdown)
Cost after markdown = 102 *(1 - 0.20)
= 102*0.80
= 81.6
Therefore, the 4 chairs were sold at a total cost of $81.60
Answer:
The expression to show the average daily change in temperature can be given by :
⇒ 
°C
Step-by-step explanation:
Changes in the temperature of city as reported by newspaper :
Day 1: 2.64° C
Day 2: 
°C
Day 3: -0.35°C
Day 4: 
°C
The average daily change in temperature can be calculated as
⇒ 
°C
The fractions can be written in decimals
⇒ °C
⇒ 
°C
⇒ 
°C [Average daily change in temperature.]
Pretty sure is 63 degrees since the one next to it is exactly the same and its 63 degrees
Answer:
C: 0
Step-by-step explanation:
Let's use 1 for an example first. The opposite of 1 is -1. 2 = -2, 3 = -3, and so on. Since there is no such thing as -0, our answer would be C, 0. It is not -5, -2, 2, or 7 because those are not the negatives of 0.
Pythagoras
28^2-19^2= 423
Square root of 423 = 20.5669638
Answer = 20.5669638
