Aspaceship traveled 93 billion miles. in scientific notation that is how many miles?

Given that de, df, and ef are midsegments of △abc, and de=3.2 feet, ef=4 feet, and df=2.4 feet, the perimeter of △abc is .

Sandy is ordering bread rolls for her party,she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers