Is x-1 a factor of 4x^3 - 2x^2 + x - 3 ? Explain why or why not.

(please help me)

Ten times the square of a non-zero number is eqaul to ninety times the number

Tell whether the two rates form a proportion

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