[section 2][formulas]

(1.)  A = s2     when   s = 3       here is the problem

A = (3)2                      replace s with 3

A = 9                  square the 3

result:  A = 9

(2.)   B = 2t - 1   when  t = 2     here is the problem

B = 2(2) - 1      replace t with 2

B = 4 - 1                 multiply

B = 3                    subtract

result:  B = 3

(3.)    C = (5/9)(F - 32) when F = 68    here is the problem

C = (5/9(68 - 32)         replace F with 68

C = (5/9)(36)               subtract

C = 20                        multiply

result:  C = 20

(4.)   S = 180(n - 2)  when n = 5       here is the problem

S = 180(5 - 2)        replace n with 5

S = 180(3)              subtract

S = 540                  multiply

result:  S = 540

(5.)   A = P[1 + 0.06t]    when P = 1500 & t = 5

[here is the problem]

A = 1500[1 + 0.06(5)]   replace P & t with 1500 & 5

A = 1500(1 + 0.3)               multiply

A  = 1950                    multiply

result:  A = 1950

(6.)   U = P/n           when P = 4.59 & n = 2.4

[here is the problem]

U = 4.59/2.4           make substitutions

U = 1.9125                  divide

result:  U = 1.9125

(7.)   V = LWH        when L = 4; W = 2.5, H = 6

[here is the problem]

V = (4)(2.5)(6)      make substitutions

V = 60                  multiply

result:  V = 60

(8.)    A = (pi)r2      when r = 20    here is the problem

A = (pi)(20)2             replace r with 20

A = 400pi               square the 20

result:  A = 400pi

(9.)    A = (pi)r2  when r = 9    here is the problem

A = (pi)(9)2               replace r with 9

A = 81pi              square the 9

result:  A = 81pi

(10.)   C = 2(pi)r      when r = 50    here is the problem

C = 2(pi)(50)           replace r with 50

C = 100pi                 multiply

result:  C = 100pi