please help in question 16,17,

note question 18 is in canada provinces

16. The total of an employee's earnings, taxable allowances, cash taxable benefits is included in: gross pensionable/taxable income gross insurable earnings gross earnings all of the above 17. Maria receives $0.25 per kilometre for the first 2,500 business kilometres she drives using her own vehicle and $0.35 for each business kilometre after. She does not receive any other compensation for the use of the car. This is considered a(n): (1) non-cash taxable benefit taxable allowance earning non-taxable allowance 18. Which provinces impose sales tax on group insurance premiums? (2)