12 picks in all . 1 out of 4 picks are orange . the rest are green . how many picks are orange ?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?