Sue is a software engineer. she wants to create a large scale drawing of a processor inside a cell phone. the processor is a square chip 9 mm 9 mm9, start text, space, m, m, end text on each side.
draw the processor such that
1
11 unit on the grid below represents
1
2
mm
2
1

mmstart fraction, 1, divided by, 2, end fraction, start text, space, m, m, end text.

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}

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 -