Answer:
No clue I’m a freshman just doing for points
Step-by-step explanation:
We know the opposite side (10) and the adjacent side (7), so we can use tangent to find angle B. Since tan = opposite side/adjacent side, we can set up this equation: tan(B) = 10/7. We can get B on its own by making the equation this:

Now, we plug this into our calculator to get:
B = 55°, so angle B is 55°.
Let me know if you need any more help!
Answer:
Expression: $7.50x + 15.50 = y Total Cost: $30.50
Step-by-step explanation:
x goes next to 7.50 because it is 7.50 per person, which makes it a variable that varies and can change.
since the expression is $7.50x + 15.50 = y, we just plug x in for 2 because he and his friend are going which is 2 people.
7.50(2) + 15.50 = 30.50
Six can be divided by two.
(I dont really get what you are asking lol)