Which of the following representations are functions?

a. {(0, 9), (3, 12), (-5, 10), (5, 10)}

b. y = x^(2) + 10

a only

a and b only

a and c only

a, b and c

Find the perimeter of the figure shown above. a. 40 cm c. 52 cm b. 60 cm d. 75 cm select the best answer from the choices provided

The cost of turkey is directly proportional to its weight. if a 12-pount turkey costs $27, how much does a 16-pound turkey cost? a. $33.75 b. $36.00 c. $31.00 d. $32.50

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2