If the average family income rises from $30,000 per year to $40,000 per year, the family's average purchase of toilet paper rises from 100 rolls to 105 rolls per year.

Instructions:Round your answer to two decimal places.

a. The incomeelasticity of demand for toilet paper is.

b. Toilet paper is

(Click to select)

an inferior good

a normal good

.

c. The demand for toilet paper is

(Click to select)

income-elastic

income-inelastic

.