70 pts !
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?

28*4/7

Step-by-step explanation:

4/7

   the 7 represents the 28.  28 is a multiple of 7.

28  *   4   =     112   =   16

 1        7           7

there are 16 girls

also we know 4*7=28 so if we count the multiples of 4, there is 4 8 12 and the 4th multiple is 16.

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2

the answer is a.

135 and 80

step-by-step explanation: