Answer:
The measure of angle CDA is 
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
In the right triangle ABF
Applying Pythagoras Theorem



In the right triangle CED


so

substitute the values


Answer:
4
Step-by-step explanation:
8x + 4 = 27 + 6x - 15
Combine Like Terms:
8x + 4 = 12 + 6x
Combine Like Terms:
2x = 8
Combine Like Terms:
X = 4
Answer:
Step-by-step explanation:
let be x the price before the discount
original price= 28/(1-0.25)=28/0.75=37.33
original price=37.33
8/9 is just under 1 and 4/7 is just over 1/2
Estimating the sum would be 1 1/2