To find the weight of the oldest gorilla in the zoo, b, you can use the equation 2b – 15 = 605. Plug the weight of each gorilla into the equation to check which value makes the equation true.

Sophia | 318 |  2(318) - 15 | False

George | 417 |  2(417) - 15 | False

Nancy | 310 | 2(310) - 15 | True

Hank | 136 |  2(136) - 15 | False

Paula | 62 | 2(62) - 15 | False

Gavin | 24 |  2(24) - 15 | False

Step-by-step explanation:

With Sophia, her equation is 2(318) - 15. That equals 621, not 605.

With George, his equation is 2(417) - 15. That equals 819, not 605.

With Nancy, her equation is 2(310) - 15. That equals 605.

With Hank, his equation is 2(136) - 15. That equals 257, not 605.

With Paula, her equation is 2(62) - 15. That equals 109, not 605.

With Gavin, his equation is 2(24) - 15. That equals 33, not 605.

option 2 is correct.

step-by-step explanation:

we are given two inequality equation

x+y> 5 and -3x+2y< -2

first we draw the graph of both function using t-table method

equation: x+y> 5

for x=0, y=5

for x=-5, y=0

table:

x   :   0     5

y   :   5     0

test point (0,0) , 0> 5

false

equation: -3x+2y< -2

for x=0, y=-1

for x=2, y=4

table:

x   :   0     2

y   : -1       4

test point (0,0) , 0< -2

true

now we draw the graph. see the attachment for graph.

common region would be solution set.

option 2 is correct.