Which ordered pair in the form (a, b) is a solution of this equation? 3a – 4b = 21 a. (–2, –3) b. (0, 7) c. (–3, –2) d. (7, 0)

Plug in all the 4 answer choices with the first number in place of a and second number in place of b. Whichever makes the equation correct, is the right answer. Let's try all four.

A. (:

. This doesn't make the equation equal 21. So this isn't the correct answer.

B. (:

. This doesn't make the equation equal 21. So this isn't the correct answer as well.

C. (:

. This doesn't make the equation equal 21. So this isn't the correct answer also.

D. (:

. This is equal to 21, so it makes the equation correct.

ANSWER: D

c

step-by-step explanation:

it would be see because your formula is f(x)=6x, so 6 times 1 is 6 and you go on and the best answer is c.

the answer is 13/48

step-by-step explanation: