Mark borrows 10 dollars from Emily with a simple interest rate of 15% everyday. What is the least integer number of days after which Mark will have to pay her back at least twice as much as he borrowed?

Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g

One angle of a linear pair is 10 more than two-thirds the other angle. find the measure of both angles.

The cost of two tables and three chairs is $705. if the table costs $40 more than the chair, find the cost of the table and the chair