Help me fast please I cant figure out this question

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$

The graph of y=x3 is transformed as shown in the graph below. which equation represents the transformed function?