1/2 of a right angle is a? answers: A. reflex angle B. obtuse angle C. acute angle D. straight angle

C. acute angle

Step-by-step explanation:

As you know ,right angle is equal to 90 degrees so half of 90 degrees is 45 degree which is an acute angle (acute angles are the angles which are less than 90 degrees)

Hope this helps and pls mark as brainliest :)

2nd one in the first row is correct

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8