The description for a certain brand of house paint claims a coverage of 475 ft²/gal.
(a) express this quantity in square meters per liter.
(b) express this quantity in an si unit.
(c) what is the inverse of the original quantity?

(a) 11.66 square meters per liter

(b) 11657.8 per meters

(c) 0.00211 gal per square feet

Explanation:

(a) 475ft^2/gal = 475ft^2/gal × (1m/3.2808ft)^2 × 1gal/3.7854L = 11.66m^2/L

(b) 475ft^2/gal = 475ft^2/gal × (1m/3.2808ft)^2 × 264.17gal/1m^3 = 11657.8/m

(c) Inverse of 475ft^2/gal = 1/475ft^3/gal = 0.00211gal/ft^3

answer is c

explanation:

c)as speed changes, wavelength and frequency change.

everything changes!