Two riders go against each other to the 9am of the people A and B located 130 miles away. The A cyclist stops pedalling at a constant speed of 30 km / h, and the cyclist from B, stops at 20 km/h. How far from A will he be found?
178 Km
110Kms
78 Km
93 Km

I know this doesn't makes much sense but I don't know what to do

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

True or false look at the picture pls : /

The square root of 9x plus 7 plus the square rot of 2x equall to 7