A group of tourists were supposed to cover an 18 km distance in a certain amount of time. However they actually traveled at a speed which was .5 km/hour greater than what they had actually planned and thus arrived a half an hour early. What speed had the tourists planned to go at?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?

Which graph represents the equation y =4x