[" 119.If "2994-:14.5=172," then "29.94-:1.45=?],[[" (a) "0.172," (b) "1.72],[" (c) "17.2," (d) "172]]

(14.5)^(2)=?

Find - 1.45 + 1.90

15 17 21 29 45 77 ?

15 17 21 29 45 77 ?

Workout : 6.4 -2.351 - 1.45 - 0.999

Find the quartile deviation for the following grouped data. {:("Class Interval",f),(" "0-4,1),(" "5-9,3),(" "10-14,2),(" "15-19,4),(" "20-24,5),(" "25-29,3),(" "30-34,2),(" "35-39,4),(" "40-44,3),(" "45-49,3):}

1 5 13 29 ? 125 253

5, 45, 83, 117, 145, ?