Are triangles def and lnm similar if df = 8 and lm = 4?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Glenda makes an online purchase for picture frames for $12.95 each and formats of $5.89 each the site says it taxes paid by the customer or 6.5% of the total purchase price shipping charges are based on the

At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.