On a map of the United States, the length between NYC and Boston is 5 inches. If the scale factor is 1 inch- 48 miles. What is the actual distance between NYC and Boston? Show/ Explain your answers

answer:

sometimes

*i think

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

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 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -