Select the correct answer. Which phrase best describes the graph of a proportional relationship?
OA
a straight line passing through the origin
O B. a straight line
Ос.
a curve
OD.
not a straight line

x+y = 29, 5x + 2y = 100

step-by-step explanation:

i'm guessing it was a multiple first option was the correct answer

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 -

6-3=3

3*3=9

9+12=21

21/3=7

7*8=56

56 is your answer