You haven't written the question properly because we have nothing to base y on.
Answer: 
Step-by-step explanation:
Let x be the price. 20% (0.20) 7.25% (0.0725)

answer:
0.25 miles/sec, i hope this helps
Step-by-step explanation:
Z = 99°
~ It is equivalent to the angle across from it.
X = 4
~ 99+7x+53=180 (add similar terms)
152+7x=180 (subtract 152 from both sides)
7x=28 (divide by 7)
x=4
You bring the numerals on to the other side of the equation, therefore dividing 19 by 3 and 6.
3x + 6y = 19
3x + y = 19/6
x + y = 3.17/3
x + y = 1.1