Ryan works at a music store and earns $100 per week plus $4 for each CD that he sells. Write an equation to determine Ryan’s total salary (S) for one week based on how many CDs (c) he sells. how many did ryan sell if he salary was 120

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

Given that δabc is similar to δdef, which is a possible trigonometric ratio for ∠d? a) tan d = 24 30 b) tan d = 30 24 c) tan d = 18 24 d) tan d = 24 18