Answer: x=10
Step-by-step explanation:

Answer:
i dont know how your teacher teaches it but in the first question take away the y after the 25. number 2 the start equation would be 55=2x+25 then you would subtract 25 from each side to get 30=2x, the divide by to to get x=15 or she made 15 calls. number 3 is correct.
i hope this helps
Answer:

please mark as brainliest
Answer:
A and B
Step-by-step explanation:
Adjacent angles are angles that share a common vertex
More specifically adjacent angles are next to each other.
The two angles that are next to ∠3 are ∠4 and ∠2 therefore the correct answer would be A and B
Answer:
D) h(3)-h(0)/3
Step-by-step explanation:
The average rate of change is found by subtracting the output values (finding the amount of change in the output values) and dividing it by the change in the input values.
The height in the 3rd second would be given by h(3). The original height would be given by h(0). The change in output values would be given by h(3)-h(0).
The change in input values is found by subtracting the two input values, in this case 3 and 0; 3-0 = 3.
This gives us
h(3)-h(0)/3