The sum of two acute angles is an acute angle. always, sometimes, or never true.

sometimes true

Step-by-step explanation:

Let take some examples:

40° and 30° are acute angles

40° + 30° = 70°, which is an acute angle

60° and 30° are acute angles

60° + 30° = 90°, which is a right angle

50° and 70° are acute angles

50° + 70° = 120°, which is an obtuse angle.

Conclusion: the sum of two acute angles is sometimes an acute angle.

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

a

step-by-step explanation: