Answer:
the group bought 10 burger and 12 drinks
Step-by-step explanation:
6.25×10=62.5
92.50-62.5=30
30÷2.50=12
2*5=10/3
10/3=3.33
two times 5 equals 10
1 times 3 equals 3
10 divided by 3 equals 3.33
You have to complete the square of (x²+18x+?) as well as for (y²-36y+?)
You will find: (x+9)² + (y-18)² = 36
& this is the standard equation requested
