A piece of rope is cut into three lengths in the ratio $6:7:10$6:7:10. If the shortest length is $24$24 m:
Find the middle length of the rope.
Find the longest length of the rope.
Now calculate the total length of the rope.
The ratio of bikes to helmets is $7:4$7:4. If there are $21$21 bikes, how many helmets are there?
The ratio of men to women at a concert is $15:45$15:45. If there are $15$15 women, what is the number of men, $x$x?
Find the value of $a$a if: