A colony of Insects doubles every day. If the colony has 5 insects today, How many will be present in 20 days? *
a.1310720
b. 2621440
c. 5242880
d. 10485760

2621440

Step-by-step explanation: just multiply by 2 every time

4.08%

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18