Answer:
1st angle = X
2nd angle = X + 7
3rd angle = X + 18
Then (sum. them): 3X + 25 = 180 ==> X = 51.67 degree
Therefore,
1st angle = 51.67 degree
2nd angle = 58.67 degree
3rd angle = 69.67 degree
Answer:
Step-by-step explanation:
we have f=-6.5
-2.75- (-6.5)= -2.75+6.5=3.75
Y =

This is because the total cost is 10x + 480 and then that needs to be divided by the amount of people.
Answer:
or 
Step-by-step explanation:
Convert the mixed numbers into improper fractions.

Since the two fractions have the same denominator, just subtract the numerators.

If required, rewrite the fraction in simplest form.

Step-by-step explanation:
no I won't thanks though