To find the mean, you must add all of the value and then divide by how many there were so
(9+12+10+8+11+12+13+6)/8
81/8
10.125 inches
Cal's dog is older because a year has about 52 weeks, while Cal's dog is 60 weeks old.
each number in the box goes in one of the categories on the bottom of the historgram. so if the number is 7, it would go in the first column because it is between 1 and 10, and would go up one number according to the numbers on the left side. in this problem there are 2 numbers between 1 and 10 so the bar graph goes up to the 2 line.
0-13/(7+14)= -13/21. is the slope
There are 2 types of line that you can mark the center of a two-way road.
1) passing permitted - it is a broken line marking found in the center of the two-way road. It means that passing other cars is permitted.
2) no passing zones and edge line - it is composed of a combination of solid yellow line, single broken-yellow line, double solid yellow line. It means overtaking or passing is never permitted.