Waitress and kitchen staff in a restaurant decide to share their tips. there are 8 kitchen staff and 10 waitresses. the kitchen staff received a mean average of £23 weekly and the waitress receives a mean of £28 weekly. work out the mean average of all 18 members of staff.

I think the answer is 25.78.

(23×8+28×10)÷18

464÷18=25.78

Step-by-step explanation:

so the total is

23+23+23+23+23+23+23+23+28+28+28+28+28+28+28+28+28+28=464

464/18=25.7777777778

£25.78

the correct answer is 1: 2

step-by-step explanation:

hope this your welcome : )

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.