Answer: 23x
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
To find how many she bought, we have to divide. So we do 105/7=15.
Answer: (-0.4, 6.8)
The graph is attached
Step-by-step explanation:
We can find the axis of symmetry using the formula x = -b/2a
x = - -4/2(-5)
x = 4/-10
x = 0.04
Substitute for x and calculate y
y = 
y = 6.8
2. $16.90 + $5.99 = $22.89
22.89-5= $17.89 The answer is reasonable
3. 14.85 x 3= $44.55 this is the total cost
to find the tax, multiply 44.55 times 0.2
The answer is not reasonable, the tip should be $8.91