A small hole in the wing of a space shuttle requires a 16.2 cm2 patch. (b) If the patching material costs NASA $3.58/in2, what is the cost of the patch to the nearest cent?

The cost of the patch : = 887.84 cents

Given

16.2 cm² patch

cost = $3.58/in²

Required

The cost of the patch

Solution

We must pay attention to the conversion factor when changing units

1 cm² = 0.155 in²

16 cm² = 2.48 in²

Cost :

= $3.58/in² x 2.48 in²

= $8.8784

1 dollar is equal to 100 cents, so :

= $8.8784 x 100 cents/$

= 887.84 cents

it means there are 3 atoms of oxygen

the answers would be

the first one and the second one