Mr. chang’s class has 28 students, 4/7 of whom are girls. which equation shows how to determine the number of girls in mr. chang’s class?

a. 28 ÷ 4/7 = 49
b. 28 x 4/7 = 16
c. 4/7 ÷ 28 = 1/49
d. 7/4 ÷ 28 = 1/16

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

In angle pqr find the measure of

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?