The length of a rectangle is twice the width. The perimeter is 18 inches.

Breadth = 3 ; Length  = 6

Step-by-step explanation:

Let the width be 'x'

Length = 2x

Perimeter = 18

Perimeter formula for rectangle = 2 ( length + breadth )

Substitute:

2 ( 2x + x ) = 18

2 ( 3x ) = 18

3x = 9

x = 3

Therefore, the width is 3.

The length is 2x = 2(3) = 6.

To check, find the perimeter:

2 ( 3 + 6 )

= 2 ( 9 )

= 18.

The perimeter is correct, therefore our answer for the width and breadth of the rectangle is correct.

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175