-WILL GIVE 20 POINTS- -HELP NEEDED ASAP-

Given that ∠ABD = 76°, which equation could be used to solve problems involving the relationships between ∠DBC and ∠ABC?

A) (9 + 12a) = (3a + 7)

B) (9 + 12a) + (3a + 7) = 76

C) (9 + 12a) − (3a + 7) = 76

D) (9 + 12a) − 76 = (3a + 7)

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2