Convert 0.0000678 into scientific notation. What exponent will 10 be raised to?
-5
-4
4
5

Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.

Which number completes the inequality? 2/3 < _ < 7/9

Aparking garage charges $1.12 for the first hour and 0.50 for each additional hour. what is the maximum length of time tom can park in the garage if we wishes to play no more than $5.62