Number of hybrid cars in use in the united states

Hybrid cars are becoming the VCR/DVD-combo players of the automotive world.

Just 2% of US auto sales last year were of cars with both electric motors and internal combustion engines, according to a report published this month by New York-based consulting firm AlixPartners. That’s down from a peak of 3.1% in 2013.

So what’s behind the drop in demand? Technology. Hydraulic fracturing (aka fracking), a drilling method that led to a boom in US oil- and natural-gas production, has driven down the cost of gasoline. Prices at the pump are currently just $2.40 a gallon, according to the US Energy Information Administration, a government statistics agency, a decline of nearly 35% since 2013. Cheap gas has also rekindled Americans’ love of trucks and SUVs.

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have