A rational number is any number that can be expressed as the quotient or fraction
The answer is D because in an Equilateral triangle all the angles are 60 degrees which is acute
Divide both sides by the numeric factor on the left side then solve x=9
9. she spends 1 hour total and 1/2 hour on spanish. So she has another 1/2 on another subject ( as she spends equal time on each subject)
So number of subjects = 1 / 1/2 = 1 * 2 = 2
