Radium 226, which had been used for cancer treatment, decays with half-life of 1622 years. suppose there is 2.3gram sample of raduim 226. how long will it take to have 1.7 grams remaining?

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

Whats the name of the vertical axis

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.