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Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

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