Answer:
I think its 55.5
Step-by-step explanation
Sorry if I got it wrong for you
Answer:
That means that B+C=128°
Step-by-step explanation:
(I think that there's an error in the task itself though C + the outer angle should be 180°)
Answer:
B
Step-by-step explanation:
because when you replace x and y
you find 4=4
Cary's age is 9 years MORE than Dan's age.
Cary's age is Dan's age, but with 9 more years added to that.
Here is how we can express that,

In 7 years, Cary will be C+7 years old,
and Dan will be D+7 years old.
In 7 years, the sum of their ages,
(C+7) and (D+7) will equal 93.
Here is how we can express that:

You have a system of two equations involving two unknowns. You have a couple of nice options here. You can apply substitution or elimination to complete the problem.