Which soap dispenser shows that 64% of its soap has been used?

c

Step-by-step explanation:

16/25= .64 *100 = 64%

C

Step-by-step explanation:

take part of soap (soap used) and divide by total soap (beginning)

16/25 = .64 x 100 = 64%

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system

josh is incorrect

x= 7 and x= -1

step 2 is wrong and honestly first step is not needed, you just need to figure out the factors

i know its wrong because if you plug in the solutions josh found, they do not work (in the original equation)

x^2 -6x -7 = 0

(x-7) (x+1) = 0

x-7=0 x+1=0

x= 7 x= -1