Answer:
The sale price is 34 euros.
Step-by-step explanation:
40 * .85 (100% - 15% = 85% or .85) = 34
Angle DME and BMQ are equal cause they are opposite angles so you could equate the two to get the value of x. BME is a straight line so after finding the value of the angle BMQ you could do 180-(x+12) = 6y-x-12.
The ratio of group 1 to group 2 to total is 4:7:11.
4:7:11= x:y:33
11*3=33
Multiply the other numbers by 3 to get the answers for x and y.
x= 4*3=12
y= 7*3=21
Final answer: Group One-12, Group Two-21