2y +6=3y+8 verify it and explain step by step?

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

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