Alejandro wants to determine the average shoe size of all of the male students in his school. which sample is likely to yield the most biased results?

a. every tenth boy on the school’s phone list
c. every member of the boys’ basketball team
b. every boy in a randomly selected ninth-, tenth-, eleventh-, and twelfth-grade gym class
d. every fifth boy who walks through the front doors of the school in the morning

Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)

City l has a temperature of −3 °f. city m has a temperature of −7 °f. use the number line shown to answer the questions: number line from negative 8 to positive 8 in increments of 1 is shown. part a: write an inequality to compare the temperatures of the two cities. (3 points) part b: explain what the inequality means in relation to the positions of these numbers on the number line. (4 points) part c: use the number line to explain which city is warmer. (3 points)