Bobby earns $9.00 per hour working. if he works for 6 hours, how much money will bobby earn?

Can someone me do math because i am having a breakdown rn because i don’t get it

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?