Solve 6 7x = 11 + 31x for x . a) 0.45 b) -0.13 c) 0.21 d) -4.

Solve 6 − 7x = 11 + 31x for x

. a) 0.45

b) -0.13

c) 0.21

d) -4.25

e)NOA

Reverse the roles of the variables by solving  a=4bc + ba

for b

a) b= a(4c + a

b) b= a/(4c+a

c) b= 2a+4c

d) b= 4ac

e) NOA

Solve using the crossing-graphs method: 12x + 3x = 9x + 3. Round

your answer to two decimal places.

a) 0.68

b) 0.98

c) 1.28

d) 0.33

e)NOA

A breeding group of foxes is introduced into a protected area,

and the population growth follows a logistic pattern. After ???????? years the

population of foxes is given by ???????? = 47.5 0.25+0.24???????? foxes. How

many foxes were introduced into the protected area?

a) 18 foxes

b) 27 foxes

c) 38 foxes

d) 47 foxes

e)NOA