Step-by-step explanation:
I'm going to assume you meant to write
in the equation as +1 - 1 wouldn't make much sense since they would just cancel out.
a. 
b. 
c. 
Irrational as 0.75 x 0.75 x 3.14......
12s + 5 = 77
12s = 77 - 5 = 72
s = 72/12
s = 6 ...//
Ans = C ... 12x + 5 = 77 ...
S = (10 x1 /2) + (1/2x- 2x 1/2²)
5 + (-0.25)
= 4.75
Answer:
C.
Step-by-step explanation:
A rectangular prism with a box top.