I don't seem to understand this

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test