Answer:
x(x) or x*x
Step-by-step explanation:
To write this in the expanded form you just multiply the base(x) by itself
1/2 pounds,
assuming that each friend takes an equal part of the 2 1/2 pounds, then 2 1/2 divided by 5 would get you 1/2 pound
Answer:
Amy's yearly salary in 2011 was $27,800
Step-by-step explanation:
we have

where
x ---> is the number of years since 2007
y ---> Amy's yearly salary in dollars
To find out what was her salary in 2011, first determine the value of x

substitute the value of x in the equation above


therefore
Amy's yearly salary in 2011 was $27,800