Bill and Mischa share their profit in a ratio of 9:5 Bill gets £72 more than Mischa.
How much money did they receive altogether?

£252

Step-by-step explanation:

The ratio of their profit is 9 ; 5 = 9x : 5x ( x is a multiplier )

Bill gets £72 more than Mischa , then

9x = 5x + 72 ( subtract 5x from both sides )

4x = 72 ( divide both sides by 4 )

x = 18

Total received = 9x + 5x = 14x = 14(18) = £252

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.