Calculate the scale factor of ABC to DEF. Enter answer as a whole number or as a fraction in lowest terms, using the slash mark (1) for the fraction bar.

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

Find the solution of each of the following.