can you please explain the answers given

15. Determine the amount of the standard deduction for each of the following situations A K, a single individual age 22, is properly claimed as a dependent on his parent's return. Kearned wages of S6,000. 56,350 B. K, a single individual age 10, is properly claimed as a dependent on his parent's return Kearned wages of $2,000 $2,350 C. J and K, a married couple, ages 60 and 68 S24.800 + $1,300 = $26,100 D. R. a single individual age 70. $12,400+ $1.650 - $14,050