Solve each system of equations.
1.
2x – 3y = 3
- 4x + 6y = -6

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

V=x^4-y^4 pick three expressions that can represent the three dimensions of the prism (each in meters)

Yuto solved the equation below. what is the solution to yuto’s equation?