Elena and Lin are trying to solve 1/2x +3=7/2x+5. Describe the change they each make to each side of the equation. Lin's first step is to write x+6=7x+10

All per-unit concepts rely on ratios,meaning,to provide a type of measurement

Kevin is an insurance salesman. when he sells a policy, he makes 20 percent of the policy premium (p) up front; then each year the policy is active, he receives 15 percent of the original premium. which equation could be used to figure his total commission on a policy that has been active for five years? c=0.80p c=0.20p + 0.15p c=0.35p + 4(0.15) c=0.95p

What value of x will make the triangles similar by the sss similarity theorem?