Answer: You can simply use a calculator.
Step-by-step explanation:
Answer:
579o
Step-by-step explanation:
61+ 62=123o
180-123= 57
J = 57o
15 is coefficient, a is a variable, 2 and -7 are like terms, 15a is a term and 2 and 7 are constants.
Answer:
A. -45
Step-by-step explanation:
Since it says the dolphin dove 45 feet below sea level, it would mean that the integer is negative.
Answer:

Step-by-step explanation:
Use the FOIL method of multiplying binomials.
First term in each binomial: 
Outside terms: 
Inside terms: 
Last term in each binomial: 
Now, rearrange the terms correctly. 
This is our final answer, since it can not be simplified any more.