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
(-3)^2 = 9
-3^2 = -9
Hope this helps!
Answer:
324 teachers
Step-by-step explanation:
3 teachers of every 50 students
__ teachers of 5400 students
so,

therefore,

Answer: y=3x-6
Step-by-step explanation:
N=number
A: n divided by 7 minus 10
B: n times 7 minus 10
C: 10 divided by 7 minus n
D: n divided by 7 minus 10