cameras actual price was $ 400. after discount its price was $280. calculate the percentage reduction in the price of the camera.

30% discount

Step-by-step explanation:

Let the percent reduction be x%

Actual price =$400

Discounted price=$280

Therefore, by the problem => %*400=280

                                             =>

There was 30% discount on the camera

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

your answer is d 2,500

step-by-step explanation: