Kyle saves 6% of his income for his new car. this year his salary was $6000 less than the previous year, and he saved $2745. what was his salary in the previous year?

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