Answer:
#13 is x=50
Step-by-step explanation:
57+43= 100
180-100=80
x+x+80= 180
2x=100
x=50
Answer:
18
Step-by-step explanation:
The value of n = 1 , 2 , 3. Find the first 3 term and add them.
3*1 + 3*2 + 3*3 = 3 + 6 + 9
= 18
788 480 is what he borrowed
Answer:
R ≥-4
Step-by-step explanation:
Substitute
2r-1>-3r-21
+3r
5r-1>-21
5r>-20
Divide 5
R>-4
Answer:
B
Step-by-step explanation:
Area is always squared; area of a rectangle is length x width so 7*4= 24in^2
If this answer helped you I would greatly appreciate brainliest :D.