Tell whether the equation has one, zero, or infinitely many solutions.6(x − 8) + 20 = 6x − 28

infinetly many

Step-by-step explanation:

6x-48+20 = 6x-28

x=764/3 so one solution

Step-by-step explanation:

remove the parentheses / multiply

0.6x-4.8+20=168

calculate

0.6x+15.2=168

move the constant to the right

0.6x=168-15.2

calculate

0.6x=152.8

solution x=764/3

alternative forem

x=254 2/3,x=254.6

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.