Answer:
A) 1 12/25
Explanation:
(2/5 - 1/10) x 2^3 - 23/25
(4/10 - 1/10) x 2^3 - 23/25
3/10 x 2^3 - 23/25
3/10 x 8 - 23/25
24/10- 23/25
Find a common denominator: 50
24 x 5 = 120
10x 5 = 50
24/10 = 120/50
23 x 2 = 46
25 x 2 = 50
23/25 = 46/50
120/50 - 46/50 = 74/50
74/ 50 = 1 24/50 = 1 12/25