Answer:
Standard form: 
Leading coefficient: 1
Step-by-step explanation:

The leading coefficient is 1 because the leading term is
.
Answer:
B
Step-by-step explanation:
Because the numbers are less than 45 and more than 40
Answer:
10
Step-by-step explanation:
Answer:
x=3; y=5
Step-by-step explanation:
y=x+2
y=3x-4
so x+2=3x-4
2x=6
x=3
because y=x+2
x=3
so y=3+2
=5
Is it asking you to tell them what the numbers that the letters substitute are??
If so o might be able to help with that