After looking over your calendar for the first semester, you notice that your
teacher gave pop quizzes on 75% of all Mondays. You decide to run a simulation
to predict the pop quizzes for this semester.
Each 2-digit number represents whether a quiz is given on a Monday.
00 to 74 represent Mondays when a quiz is given.
Do these results tell you whether your teacher will definitely give a quiz on the
first Monday of the semester? Explain your reasoning.

i dont know sorry

step-by-step explanation:

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!