Max and his friend zeke are comparing their ages. they figure out that if they double max's age from 3 years ago and add it to zeke's current age , the sum is 26. if zeke is currently 8 years old, determine how old max currently is.

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

Evaluate the expression for the given value of the variable 7a - 4a for a =8

If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 165-pound man? 1.0 kg ca 5.1 kg ca 1.0 x 102 kg ca 5.1 x 102 kg ca