Sarah is training to run a race. She runs 1 mile per day for the first week. She doubles that and runs 2 miles each day for the second week. She doubled her daily run again for the third week. How many miles did she run if she ran everyday those three week? Challenge question...

Ateacher noticed 5/8 of the students were wearing either blue shorts or white shorts. write two different ways this could be done.

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)

Find the arc length of the semicircle. 7the grade