A) 1/2, 5/8, , 3/4, 7/8, , , b) , 6.25, , 5.5, 4.75, , , c) 50, , 65, 72.5, , , , d) , 59/12, 29/6, , , , ,

Step-by-step explanation:

1/2, 5/8, , 3/4, 7/8, , ,

using 5/8 - 1/2 = 1/8      7/8 - 3/4 = 1/8

Answer= 1/2, 5/8, 6/8, 3/4, 7/8, 1, 9/8, 10/8 but there is an error in the third number 3/4, it is not supposed to be...

b) , 6.25, , 5.5, 4.75, , ,

using 5.5-4.75 = 0.75

7, 6.25, 5.5, 4.75, 4, 3.25, 2.5

c) 50, , 65, 72.5, , , ,

using 72.5 - 65 = 7.5

50, 57.5, 65, 72.5, 80, 87.5, 95, 102.5

d), 59/12, 29/6, , , , ,

Using 59/12 - 29/6 = 1/12

60/12= 30/6, 59/12, 58/12=29/6, 57/12,  28/6, 55/12, 27/6, 53/12

c. side angle side. u shares the same sides