A chess team is ordering customized T-shirts for a competition. The Number of T-shirts, 2 6 12 18. 24 Cost (dollars), y 108 180 252 324 A linear model is y= 18

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

step-by-step explanation:

all it means is function 3

0.6

39mph

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 -