d=rt
300=r4.5
divide both sides by 4.5
66 and 2/3=r
the rate is 66 and 2/3mph
p=2(l+w)
90=2(20+w)
divide both sides by 2
45=20+w
minus 20 both sides
15=w
width=15in
Answer:
C. (0, 4)
Step-by-step explanation:
Your vertex is going to be <em>(h, k)</em>.
Alternatively you can graph the equation to find that your vertex is at (0, 4)
Shown are your points plotted on a number line.
Answer: b,e
Step-by-step explanation: