4 ounces are left because 3/4 of 20 is 5. And 1/5 of 5 is 4. I hope this helps
Answer:
x = ±
i
Step-by-step explanation:
subtract 64 from both sides
9x² = - 64 ( divide both sides by 9 )
x² = -
( take the square root of both sides )
x = ±
= ±
i
Ok so the answer is 160/32
The answers are -3,5,13,21,29
Y= 10 + 1.25x
This is the answer because 10 is the initial fee (you start with it) and 1.25 is added for each minute, with each minute being the variable