Answer:
620.14
Step-by-step explanation:
Original Equation:

Calculate exponents

Simplify:

Add like terms

Divide both sides by 7.012


Answer:
If a, b and c are in arithmetic progression, that means that a + c = 2b. So a + b, a + c and b + c are also in arithmetic progression.
This might help.
Answer:
x^xtfr
Step-by-step explanation:
2 plus 2 the answer would be 20
Answer:
18 inches.
Step-by-step explanation:
If the ratio for inches to miles is
,
then you multiply the top and bottom by 6 to get to 30. This gets the numerator to 18 inches.