Bobby claims that Peter started with 21 cards. Which statements are true about verifying Bobby’s claim? Check all that apply. A. Substitute 21 for x in the original equation.
B. Substitute any number for x in the original equation.
C. Bobby’s claim that x = 21 is correct.
D. The result of verifying Bobby’s work is 9 = 9.
E. The result of verifying Bobby’s work is 21 = 21.

answer: ur mum is gay

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4

idk u tell me

step-by-step explanation: