Plzz help 15 points Which of the following graphs show
f(x) =
x + 1, when x < 1
4, when ≥ 1

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

answer is because 4×10=40

and 98×4= is 392

40,392

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 -