Invested $60,000 earning 6.5% simple interest. how much interest will he earn over 5 years?

Ineed i been stuck on this question since yesterday

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?

B. two events are dependent if the occurrence of one event changes to occurrence of the second event. true or false