Answer:28
Step-by-step explanation:
3^x=5
3^2x+3
(3^x)^2 + 3
Substitute 3^x=5 in (3^x)^2 + 3
5^2 + 3
5x5+3=28
Answer:
Step-by-step explanation:
Solve the following inequality:
-Subtract to both sides:
-Divide both sides by :
The number line:
Answer:
D
Step-by-step explanation:
She spent $12 and *$ on two separate things, meaning she spent $20 on both.
So, 12 + 8 = 20.
If she started with 25, we subtract 20 from 25 to get how much she has left.
So, 25 - 20 = y.
Therefore, the answer is D.
Answer:
the length of the wall of the room = 11
Step-by-step explanation:
if it's a square room, area of each wall, floor and top are equal, so,
=》
=》
=》
so, length of wall of the room is 11 meters.