To join a local square dancing group, jan has to pay a 100$ sign up fee plus 25$ per month. write an equation for the cost (y) based on the number of months (x)

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

Ineed to know the answer to this algebra question.

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?