How many ounces of oil were in a diffuser with the least oil

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How many ounces of oil were in a diffuser with the least oil

just took the test and my answers down below!

step-by-step explanation:

check the pic :

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - [tex]\frac{3}{2}[/tex] r - 1 + r

= 12 - [tex]\frac{1}{2}[/tex] r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - [tex]\frac{3}{2}[/tex] - [tex]\frac{2}{3}[/tex] - 6r

[- [tex]\frac{3}{2}[/tex] - [tex]\frac{2}{3}[/tex] = - [tex]\frac{9}{6}[/tex] - [tex]\frac{4}{6}[/tex] = - [tex]\frac{13}{6}[/tex]]

= r - [tex]\frac{13}{6}[/tex]

The third box is a function

[tex]Question 5 which set of coordinates represents a function?[/tex]

3030 ur welcome

step-by-step explanation: