a group of 4 pupils can take 2 weeks to do a certain job. how long will 12 pupils take to complete the job if they work at the same rate

6 weeks

Step-by-step explanation:

Set up a proportion where x is the amount of time with 12 pupils:

=

Cross multiply and solve for x:

4x = 24

x = 6

So, it will take 12 pupils 6 weeks to complete the job.

true? is that what you're asking or do you mean something else?

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.