Answer:
6. -3
7. 16
8. -39
Step-by-step explanation:
All sides are the same, hence, all three angles are the same, and each one of them is 60 degrees. Due to that:
7x + 4 = 60
7x = 56
x = 56/7 = 8
8y + 12 = 60
8y = 48
y = 48/8 = 6
30-5d ( where d stands for amount of days, and 5 is the amount of moeay paid per day)
