Answer:
is sometimes positive and sometimes negative.
Step-by-step explanation:
Take 
Take 
Hence 
for 
and 
for 
So is sometimes positive and sometimes negative in the interval.
The speed that lisa drive was a possibility of 65 mph
Answer:
no solution
Step-by-step explanation:
the standard form of that graph is ax squared +bx+c
Answer:
$65
Step-by-step explanation:
Let
x = original price of the item
Mai buys one item and saves $13,
This means 20% of the original price of the item = $13
20% of x = 13
20/100 * x = 13
0.2 * x = 13
0.2x = 13
Divide both sides by 0.2
x = 13 / 0.2
= 65
x = $65
Therefore, the original price of the item is $65
