Sandra is traveling 19 mph on her bicycle. After 2 hours, how far will she have traveled? A.
38 miles
B.
3 miles
C.
17 miles
D.
39 miles
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The surface area (sa) of a cube with a as the length of each of its sides is given by the formula . if the surface area is known, how can you rewrite the formula to find its side?

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?