Denote points:
- G - gas station;
- M - motel;
- S - sister's home.
These three points lie on the same line in order M, G and S. The distance MS=341 mi and MS=GM+GS.
It takes Doug 3 hours to go to a motel from gas station (GM) and it takes 2.5 hours Ashley to go to a sister's home from gas station (GS). The total time is 3+2.5=5.5 hours.
Then using the formula d=rt, you can conclude that
341=5.5·r,
r=341:5.5,
r=62 mi/h.
Answer: 62 mi/h.
Assuming that a car gets 28 miles per gallon of gas, how many gallons of gas are required for the car to go 560 miles?
1.
1c = 8 fl oz
Hence, a: 43 fl oz is correct
2.
1 inch = 0.0833 foot
43 inch = 
Hence, option D 
is correct.
3.
Length of material Mili has = 
Length needed for her skirt = 
Material left will be = 
=
Hence, option A is correct.
The correct equations of a parabola are z = 2(y-9)²-2 and y = 2(z-2)²-9.
This is a problem with coordinate geometry. We can solve this by following a few steps.
First of all we should know the ideal equation of a parabola. The equation is,
- where ( h, k ) is the vertex of the parabola.
From all those options only last two equations satisfy the conditions.
Where the coordinate of the vertex of this parabola is ( 9, 2 ).
Hence we can conclude that z = 2(y-9)²-2 and y = 2(z-2)²-9 are the correct equation of a parabola.
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