Answer:
63
Step-by-step explanation:
x + 21 + 3x + 9 = 90
Combine like terms
4x + 30 = 90
Subtract 30 from both sides
4x = 60
Divide both sides by 4
x = 15
Answer: Yes.
Step-by-step explanation: If a number ends in 0, 2, 4, 6, or 8, the number even number.
Answer:
15625 is 5 to the power of 6.
You didn't give your answer choices, so I will assume you are referring to the answer.
Step-by-step explanation:
