A petri dish has 246 bacteria. It grows at a rate of 7% per month. How many bacteria will there be in 5 months? Round your answer to the nearest whole number. 20 points.

after 5 months, the petri dish will have 332 bacteria :)

Step-by-step explanation:

7% of 246 = 17.22

every moth, the bacteria increases by 17.22

17.22 x 5 = 86.10

246 + 86.10= 332.1

rounded to the nearest whole number= 332

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