Dexter plans to spend totally 8 hours on preparing
for his final. he will spend 3.5 hours on math. he needs
twice as much time on biology as on english. he plans to
take three 30-minute breaks in-between his study. how
long will dexter spend on studying biology?

2 hours

Step-by-step explanation:

Let the total time allotted for English be x

Hence the total time for Biology studies = 2x

Time allotted for Math = 3.5

Rest time = 30 min + 30 min +30 min = 90 min = 1.5 hrs

Total time for studies = x+2x+3.5+1.5 which is given as 8 hours

Thus

x+2x+3.5+1.5 =8

3x+5=8

3x=3

x=1

Hence time on English = 1 hours

Time for biology = 1 x 2 = 2 hours

the answer is 37

step-by-step explanation:

a. 74 degrees

step-by-step explanation:

because the lines through the side and the box in the corners shows that these are congruent triangles and since they are mirrored the 37 degrees is also mirrored so the answer is 37 * 2 which is 74.