Answer:
......No
.......Yes
.....No
......Yes
Step-by-step explanation:
Let the number of students in Byran's homeroom who have tickets to attend the school's musical be m.
Then 4 more than half this number is written as: 
According to thee given statement, this expression is equal to 20.

We can subtract
from both sides to create an equivalent expression.

Answer:
x= -5
y= -2
Step-by-step explanation:
From the equation y=x+3-------eqn 1
x+y= -7-------eqn2
x+(x+3)= -7 (since there is no value before the bracket is 1, so multiply by 1)
x+x+3= -7
2x+3=-7
2x=-7-3
2x=-10
x=-10/2
x=-5
Insert x value in equation 1
y= -5+3
y=-2
Answer:
$1,080
Step-by-step explanation:
30,000*1.2%=360
360*3=1,080
Answer:
-6x^2 - 7x +1
Step-by-step explanation:
2x^2+3x-9 -(8x^2+10x-10)
3x^2+3x-9 -8x^2-10x+10
Combine like terms
-6x^2 - 7x +1