At a restaurant your food bill was 80 dollars and you left a tip for 16 dollars. what percent of the bill did you leave for the tip

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

Math question.. plz me .. best answer all

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