Answer:
I think it’s 20 or 26 sorry if I get it worng :(
Answer:
Step-by-step explanation:
21 feet below is written as -21
9 feet up is written as +9
So we have -21 + 9 = -12 or 12 feet below sea level
Answer:

Step-by-step explanation:

Switch sides:

Multiply both sides by 9:


Divide both sides by 5:


Add 32 to both sides:


Answer:
x(7x+34)
=(x)(7x+34)
=(x)(7x)+(x)(34)
=7x2+34x
Step-by-step explanation: