Andy has 63 blue buttons and 74 green buttons. He takes turns placing equal groups of blue and green buttons into his design. The number of blue buttons Andy has left after placing each group into his design follow the rule subtract four. The number of green buttons Andy has left after placing each group into his design follow the rule subtract six. Write number patterns to find how many buttons Andy has left after placing four groups of blue buttons and four groups of green buttons into his design.

i think the answer is seven, for if i'm being useless °ω°

step-by-step explanation:

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 -

h * s * a

h = history teacher

s = science teacher

a =   art teacher.

i see no data table, but just multiply the number of history teachers, science teachers, and art teachers.