Answer:
the slope is 2/3 bcoz u do 2-0/3-0
It will chime 11 times during 8:15 a.m.-1:35 p.m.
The range is 17 because the highest score (95) minus the lowest score (78) is 17
We can use a rule of three simple, direct proportion to solve this problem.
15 pounds correspond to $1.80, then the question is to find the price of one pound, the called unit rate. We state the rule of three:
15 pound ----> $1.80
1 pound -----> x
x = (1)(1.80)/15
x = 0.12
Therefore, each pound costs $0.12 that is the unit rate in pounds
