The following is the frequency distribution for the speeds of a sample of automobiles traveling on an interstate highway. Speed (MPH) Frequency  50 − 54 2 
55 − 59 4 
60 − 64 5 
65 − 69 10 
70 − 74 9 
75 − 79 5 
Find mode
Median
The class mark of the first class
the 5th decile class
The range
The upper class boundery of the 3rd class
The 50th percentilee

What is the y intercept of f(x)=(1/2)^x?

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size. it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?

Walking at a constant rate of 8 kilometers per hour, juan can cross a bridge in 6 minutes. what is the length of the bridge in meters?