7k = 77
p/5 = 10
3 = m/12
4a = 36
5x = 12
4.2 = c/8
You earn $5 for every friendship bracelet you sell. Write and solve an equation to find the number of bracelets you have to sell to earn $85.
You practice the piano for 30 minutes each day. Write and solve an equation to find the total time t you spend practicing the piano in a week.