2) Find an equivalent expression:
(3d - 7) - (6d? + 2d - 4) =

-5d-3

Step-by-step explanation:

(3d-7)-(6d+2d-4)

=(3d-7)-(8d-4)

3d-8d=-5d

-7-(-4)=-3

=-5d-3

blue marble is 15 times out of 50 = 15/50 reduces to 3/10

landing on tails is 24 out of 50 = 24/50 reduces to 12/25

to find the probability of both multiply together:

3/10 x 12/25 = 3 x 12 / 10 x 25 = 36/250

if you multiplied the numerator and denominator by 10 you get 360/2500.

the answer is 360/2500