Anjali, Ravina and Sandeep are going to share £21 156 between them. Anjali is going to receive 20% more than Ravina.
the amount of money Ravina gets : the amount of money Sandeep gets
3:2
Work out the amount of money each of the three girls receives.

Can someone pls ! pls answer all. no explanation needed..

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.