At Hoffman's Bike Rentals, it costs $30 to rent a bike for 7 hours. How many dollars does it cost per hour of bike use?

What is 20+(5 x 2/5 )+ 3 show your work

Mike wants to make meatloaf. his recipe uses a total of 8 pounds of meat. if he uses a 3 to 1 ratio of beef to pork, how much pork will he use? enter your answer as a mixed number in simplest terms.

Triangles abc and dfg are given. find the lengths of all other sides of these triangles if: b ∠a≅∠d, ab·dg=ac·df, ac=7 cm, bc=15 cm, fg=20 cm, and df-ab=3 cm.