Solve the inequality write the answer in interval notation 5x<10 or 15-x<7

Write the expression 7x^3-28xy^2 as the product of 3 factors

Determine domain and range, largest open interval, and intervals which function is continuous.

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