Given:
5 students are able to share 20 crayons.

For 30 students,

Answer: There are 120 crayons are needed for 30 students.
.72 is 72%. Just move the decimal point two places to the right.
Notice that 50 minutes is twice the half-life.
After 25 minutes, half of the starting amount remains, so that 88g decays to 44g.
After another 25 minutes (a total of 50 minutes), the 44g will decay to 22g.
I believe the answer would be 70 but make sure just in case.
Answer:
Step-by-step explanation:
