Answer:
-14.53
Step-by-step explanation:
-5.23-9.3=-14.53 it's a negative plus a negative
Put the values of the variables in place of the variables in the expression, then do the arithmetic.

Answer:
7.5 lb/cu ft
Step-by-step explanation:
75 lb / 10 cu ft = 7.5 lb/cu ft
(A) 1.8
The difference is 18, 13 is bc the tenth term so divide 18 by 10 to get 1.8