Simplify each of the following: `25-1/2{5+4-(3+2- 1+3)}` `27-[38-{46-(15- 13-2)}]`

Simplify each of the following:   1). 25-1/2{5+4-(3+2- 1+3)} 2). 27-[38-{46-(15- 13-2)}]

Simplify each of the following: 4+1/5[{-10xx(25- 13-3)}-:(-5)] 22-1/4{-5-(-48)-:(-16)}

Simplify each of the following: 36-[18-{14-(15-4-:2xx2)}] 45-[38-{60-:3-(6-9-:3)-:3}]

Simplify each of the following: 1). 4+1/5[{-10xx(25- 13-3)}-:(-5)] 2). 22-1/4{-5-(-48)-:(-16)}

Simplify each of the following:   1). 36-[18-{14-(15-4-:2xx2)}] 2). 45-[38-{60-:3-(6-9-:3)-:3}]

Solve the following: 27- [38- {46- (15-13- 2)}]

Simplify each of the following : [{((-1)/5)^(-2)}^2]^(-1)\ (ii) {(1/3)^(-2)-\ (1/2)^(-3)}-:(1/4)^(-2)

Simplify each of the following : (i) [{((-1)/5)^(-2)}^2]^(-1)\ (ii) {(1/3)^(-2)-\ (1/2)^(-3)}-:(1/4)^(-2)

Find the inverse of the following : [[2,5],[1,3]]