20% decrease will be 20/100 ×30 dollars = 6 dollars
B=-56/14. b=-4.(the result will be negative (-4).).
0.8 is 20% of 4. This is because 20% of something occurs when something is divided by 5, since it is 1/5 of 100. You multiply 0.8*5, and you get 4.
Answer:
Step-by-step explanation:
It would b (b) hope it helps
-sammy
The tangent line is perpendicular to the radius from the center of the circle to the point of tangency.
ΔDCE is similar to ΔDBA
DC/DB=DE/DA
15/50=DE/40
DE=12