The width of a rectangle is 20 inches what must the length be if the perimeter is at least 180 inches

The perimeter is the sum of the 4 sides.

The width is 20, so the 2 widths would be 20+20 = 40

Subtract that from the given perimeter:

180 - 40 = 140

Divide that by 2 for the two lengths:

140/2 = 70

The length needs to be at least 70 inches.

$450.00 for 6 weeks

or

$300

step-by-step explanation:

$200.00 for first week $50.00 x5 equals $250 plus $200 equals $450.00 for six weeks.

$200 for first week

$200 x 0.10 = $20

$20 x 5 = $100

$200 + $100 = $300

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.