4. Identify the means and the extremes in each of the following proportions. a 4:24 = 2:12
b. 24/5 = 15/4
C. 4:8 = 8:16
d. 5750 = 9/25

True or false? a triangle can be circumscribed about a given circle

Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second