m = amount of money you receive
You need at least $40, so that means you need m = 40 or more
So 
which is the same as saying 
. You flip both sides and also flip the inequality sign as well.
At the same time, your parents won't give you more than $50. So the largest m can get is m = 50. This means 
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Combine and to get the compound inequality 
This represents all the possible values of m. We see that m can get as small as m = 40, or as large as m = 50, or anything in between.
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Answer:
Yeah its gonna be 18 square feet in wide and length and the area is gonna be 36 square feet
(dz/dx)= (-e+4)(4pi)sin(4pi*t)
The easiest answer I know is if you swap the 
s with 
s, then there will be two equations called parabolas. They open upward if the value is positive and open downward if the value is negative. If the exponent is 2, then it's a parabola. If it's 3, then it's a cubic function, because cube is for "3". Square is for "2". If you look at both parabolas, you can see that 
is wider than 
.
So the best answer I can think of is She made a mistake because the parabola on the 10x² graph is wider than the (5x)² graph. Also, it's because 5x and 10x are not the same thing. When an x value increases, the graph is narrower.
