In mon, j, k, and l are midpoints. if jl = 11, lk = 13, and on = 20, and jl || mn, lk || mo, and jk || on, what is the length of mn, mo, and jk?

How many grams must be adde to 970g to make 1 and a half kg

Answer this question only if you know the answer! 30 points and

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