Answer:
Dana needs 72 feet of ribbon to make all the bows
Step-by-step explanation:
If she needs to make all the bows, she needs a total of:
18 times 4 feet = 18 * 4 = 72 feet of ribbon
To find the answer, use , and then use the equation To find it's half life.
bxy and bac
since line xy is parallel to ac the triangles are similar