Point B is between point A and C. If AB = 20 and
AC = 28, what is BC?

BC = 7

Step-by-step explanation:

since B is a point between A and C so AB + BC = AC

putting the values in above equation

AB + BC = AC

20 + BC = 28

BC = 28 - 21

BC = 7

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option