Answer:
B. 13
work:
9^1/2+√25+8÷2+3²
(3²)^1/2+5-4+9
3+5-4+9
C.4/5
work
1/2*3/5*(2^3-6)+1/5
1/2*3/5*(8-6)+1/5
1/2*3/5*2+1/5
3/5+1/5
B
Step-by-step explanation:
using Gaussian elimination method of matrix