Answer:
12(4+3)
Step-by-step explanation:
Place values:
As each is in a different place value, when we add them neither will affect the other, meaning:

Answer: B 4.39
Answer:
D.
Step-by-step explanation:
If she connects it to any other point the angle would be more then 30 degrees.
Answer: x ≤ 10
Step-by-step explanation:
20 + 13x ≤ 150
13x ≤ 150 - 20
13x ≤ 130
x ≤ 130 ÷ 13
x ≤ 10
Answer:
19,14
Step-by-step explanation:
x=5+y
x+ y= 33
we will solve using substitution
(5+y) +y= 33
5+y+y=33
5+2y=33
subtract 5 from both sides
2y=28
y=14
We got y now we will find what x is
for this, we will substitute y's value (14) into the first equation
x=5+(14)
x=19
we got x too